Calculate the following questions (2 and 1 / 3 minus 238 / 54 + 91 / 117) × (- 1 and 2 / 7)

Calculate the following questions (2 and 1 / 3 minus 238 / 54 + 91 / 117) × (- 1 and 2 / 7)

Original formula = (7 / 2-119 / 27 + 91 / 117) x (- 9 / 7)
=-7/2x9/7+119/27x9/7-91/117x9/7
=-9/2+17/3-1
=-27/6+34/6-1
=1/6

4 / 13-2 / 9 + 1 / 13 + 2 / 9 = (to be simplified)

4 / 13-2 / 9 + 1 / 13 + 2 / 9
=(4 / 13 + 1 / 13) + (2 / 9-2 / 9)
=5 out of 13 + 0
=5 out of 13

28 of 13 - (2 of 13 + 5 of 7)

28 out of 13 - (2 out of 13 + 5 out of 7)
=28 out of 13-2 out of 13-5 out of 7
=2-5 / 7
=1 and 2 / 7
[I hope I can help you]

Simple calculation of 3 / 5 + 7.91 + 9 / 100 + 3.4

3/5+7.91+9/100+3.4=0.6+7.91+0.01+3.4=（0.6+3.4）+（7.91+0.01）=4+8=12

Simple operation: 2 / 3 + 7 / 12 + 9 / 20 + 11 / 30 + 13 / 42 =?

This is the only way to simplify the calculation
2/3 +7/12- 9/20 +11/30- 13/42
=(1-1/3)+(1/3+1/4)-(1/4+1/5)+(1/5+1/6)-(1/6+1/7)
=1-1/7
=6/7

Simple calculation of 1 / 12 / 7 times 4

12 and 1 / 7 times 4
=12*4+1/7
=48 and 7 moleculars 1

A simple calculation of 19 / 91 multiplied by 7 and 8 / 13

19 / 91 times 7 plus 8 / 13
=19/13+8/13
=27/13
=2 and 1 / 13

(91 × 27 × 84) / (13 × 9 × 7) simple calculation of grade 4

（91×27×84）÷（13×9×7）
=(91÷13)×(27÷9)×(84÷7)
=7×3×12
=252

578x8 6286 divided by 7 410x296 4.93x0.6287 divided by 0.48 27.475 divided by 3.14

578 × 8 is about 580 × 8 = 4640
6286 △ 7 is about 6300 △ 7 = 900
410 × 296 is about 410 × 300 = 123000
4.93 × 0.62 is about 5 × 0.5 = 2.5
87 △ 0.48 is about 96 △ 0.48 = 200
27.475 △ 3.14 is approximately equal to 27 △ 3 = 9

What is 7 million divided by 1.3 billion

0.005384615