What's 12 minus 19 / 8 and 7 / 12?

What's 12 minus 19 / 8 and 7 / 12?

12-19/8+7/12
=12-57/24+14/24
=12-43/24
=245/24;
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Divide 5 kg of apples into 8 parts on average. How many parts of the pile are each? How many kg are each?

1 / 8 = 1 / 8
5 / 8 = 5 / 8 kg

A rope is 5 meters long, divided into 8 parts on average, each of which is long______ Meters, each of which accounts for 50% of the total length______ ．

1 △ 8 = 18; 5 × 18 = 58 (m); answer: each piece is 58 m long, accounting for 18% of the total length

Fill in the blanks according to the rule, 0.3.8.15.24. What's the number in 2006?

an=n^2-1
a2006=2006^2-1=4024035

Simple formula of 37 × 33 + 66 × 37 + 37

37×33+66×37+37
=37×(33+66+1)
=37×100
=3700

-40-28 - (- 19) + - 24 - (- 32) = formula

-40-28+19-24+32
=-68+19-24+32
=-49-24+32
=-73+32
=-41

19, 20, 21 and 22 are made up of 24:00 with "+, -, ×, △ and"______ ．

According to the analysis, (19 + 21) △ 20 + 22, = 40 △ 20 + 22, = 2 + 22, = 24; or (21-19) × 22-20, = 2 × 22-20, = 44-20, = 24; so the answer is: (19 + 21) △ 20 + 22 or (21-19) × 22-20

The sum of 5 / 12 and 1 / 8 of a number is 19 / 24

Let this number be X,
5\12x+1\8=19\24
5\12x=2\3
X=8\5

What is the sum of 12 and two fifths of a number, and the sum is 20? What is the result if the sum of four fifths and three fourths is removed from fifteen fifths?
Come on, don't ask the teacher!

1. This number = (20-12) △ 2 / 5 = 20
2. Results = 15 / 5 △ 4 / 5 + 3 / 4 = 45 / 31
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3.15 degrees + 16 degrees 21 minutes 24 seconds / 4=

3.15 degrees + 16 degrees 21 minutes 24 seconds / 4 = 3 ° 9 '+ 4 ° 5'21 "= 7 ° 14'21" ≈ 7.239 degrees