Subtract 80/70 from 7/75, Solve 7/75

Subtract 80/70 from 7/75

1^st number: 7/75, 2^nd number: 1 10/70

7/75 - 80/70 is -551/525.

Find the least common denominator or LCM of the two denominators:
LCM of 75 and 70 is 1050

Next, find the equivalent fraction of both fractional numbers with denominator 1050
For the 1st fraction, since 75 × 14 = 1050,
7/75 = 7 × 14/75 × 14 = 98/1050
Likewise, for the 2nd fraction, since 70 × 15 = 1050,
80/70 = 80 × 15/70 × 15 = 1200/1050
Subtract the two like fractions:
98/1050 - 1200/1050 = 98 - 1200/1050 = -1102/1050
After reducing the fraction, the answer is -551/525

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