Subtract 10/80 from 12/7, Solve 1 5/7

Subtract 10/80 from 12/7

1^st number: 1 5/7, 2^nd number: 10/80

12/7 - 10/80 is 89/56.

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,
12/7 = 12 × 80/7 × 80 = 960/560
Likewise, for the 2nd fraction, since 80 × 7 = 560,
10/80 = 10 × 7/80 × 7 = 70/560
Subtract the two like fractions:
960/560 - 70/560 = 960 - 70/560 = 890/560
After reducing the fraction, the answer is 89/56
In mixed form: 133/56

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