Subtract 72/70 from 4/49, Solve 4/49

Subtract 72/70 from 4/49

1^st number: 4/49, 2^nd number: 1 2/70

4/49 - 72/70 is -232/245.

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,
4/49 = 4 × 10/49 × 10 = 40/490
Likewise, for the 2nd fraction, since 70 × 7 = 490,
72/70 = 72 × 7/70 × 7 = 504/490
Subtract the two like fractions:
40/490 - 504/490 = 40 - 504/490 = -464/490
After reducing the fraction, the answer is -232/245

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