Subtract 90/80 from 56/7, Solve 8 0/7

Subtract 90/80 from 56/7

1^st number: 8 0/7, 2^nd number: 1 10/80

56/7 - 90/80 is 55/8.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 80 is 560

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 7 × 80 = 560,
56/7 = 56 × 80/7 × 80 = 4480/560
Likewise, for the 2nd fraction, since 80 × 7 = 560,
90/80 = 90 × 7/80 × 7 = 630/560
Subtract the two like fractions:
4480/560 - 630/560 = 4480 - 630/560 = 3850/560
After reducing the fraction, the answer is 55/8
In mixed form: 67/8

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