Subtract 75/70 from 70/49, Solve 1 21/49

Subtract 75/70 from 70/49

1^st number: 1 21/49, 2^nd number: 1 5/70

70/49 - 75/70 is 5/14.

Find the least common denominator or LCM of the two denominators:
LCM of 49 and 70 is 490

Next, find the equivalent fraction of both fractional numbers with denominator 490
For the 1st fraction, since 49 × 10 = 490,
70/49 = 70 × 10/49 × 10 = 700/490
Likewise, for the 2nd fraction, since 70 × 7 = 490,
75/70 = 75 × 7/70 × 7 = 525/490
Subtract the two like fractions:
700/490 - 525/490 = 700 - 525/490 = 175/490
After reducing the fraction, the answer is 5/14

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