Question

(20/21-1/7) x 7/8 = ?

Answer 1

first make the denominator equal by multiplying 7 by three = (20/21 - 3/21) = (17/21)

now factor out 7 from (17/21) • 7/8
which gives 17/3 • 1/8

now multiply 17/3 • 1/8 = 17/21

Answer 2

17/24 Decimal form- 0.708333

Explanation: