Subtract 10/90 from 7/49, Solve 7/49

Subtract 10/90 from 7/49

7/49 - 10/90 is 2/63.

Find the least common denominator or LCM of the two denominators:
LCM of 49 and 90 is 4410

Next, find the equivalent fraction of both fractional numbers with denominator 4410
For the 1st fraction, since 49 × 90 = 4410,
7/49 = 7 × 90/49 × 90 = 630/4410
Likewise, for the 2nd fraction, since 90 × 49 = 4410,
10/90 = 10 × 49/90 × 49 = 490/4410
Subtract the two like fractions:
630/4410 - 490/4410 = 630 - 490/4410 = 140/4410
After reducing the fraction, the answer is 2/63

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