One sixth times three quarters divided by (four fifths - eight fifths)

One sixth times three quarters divided by (four fifths - eight fifths)

Equal to 1 / 8 divided by (12 / 15 minus 8 / 15)
It's one eighth divided by four fifths
It's one eighth times fifteen fourths
It's 15 out of 32
What you do should be right

74 divided by the quotient of 47 minus the reciprocal of 47, the difference multiplied by 47, what's the result?

(74 △ 47-74) × 47 = (4916-74) × 47, = 2116 × 47, = 34, a: the result is 34

Put the ten numbers 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 into the small box below to make the three equations hold

In the multiplication formula, the product must be an integral tens, and we can get 2 × 5 = 10, 4 × 5 = 20, 6 × 5 = 30, 8 × 5 = 40; suppose it is 2 × 5 = 10; there are 3, 4, 6, 7, 8, 9 left; these six numbers cannot form an addition formula and a subtraction formula, so the multiplication formula is not 2 × 5 = 10; suppose it is 4 × 5 = 20; there are 1, 3, 6, 7, 8, 9 left; and because 3 + 6 = 9, 8-7 = 1; so, it is consistent with Suppose 6 × 5 = 30; there are 1, 2, 4, 7, 8, 9 left; these six numbers can not form an addition formula and a subtraction formula, therefore, the multiplication formula is not 6 × 5 = 30; suppose 8 × 5 = 40; there are 1, 2, 3, 6, 7, 9 left; these six numbers can not form an addition formula and a subtraction formula, therefore, the multiplication formula is not 8 × 5 = 40; therefore, the three formulas Yes

Put the seven numbers 1, 2, 3, 6, 7, 8 and 9 in the following brackets to make the formula true. () + ()=（
Fill the seven numbers 1, 2, 3, 6, 7, 8 and 9 in the following brackets to make the formula true
（ ）+（ ）=（ ）（ ）-（）=（ ）（）

8+9＝23-6＝17