Subtract 80/7 from 35/80, Solve 35/80

Subtract 80/7 from 35/80

1^st number: 35/80, 2^nd number: 11 3/7

35/80 - 80/7 is -1231/112.

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

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 80 × 7 = 560,
35/80 = 35 × 7/80 × 7 = 245/560
Likewise, for the 2nd fraction, since 7 × 80 = 560,
80/7 = 80 × 80/7 × 80 = 6400/560
Subtract the two like fractions:
245/560 - 6400/560 = 245 - 6400/560 = -6155/560
After reducing the fraction, the answer is -1231/112

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