3 years ago

7/9*18/21=? Solved and supporting work and answer in simpliest form

Mathematics

1 answer:

oksano4ka [1.4K]3 years ago

3 0

Answer: 2/3

(7/9) (18/21)

(7/9) (6/7)

common factor is 3 between 18 and 21. 7 x 3 = 21 and 6 x 3 = 18

7/9 6/7 multiply 7 x 9 = 63 and 6 x 7 = 42

= 42/63

= 2/3

decimal: 0.666667

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