Subtract 50/49 from 10/72, Solve 10/72

Subtract 50/49 from 10/72

1^st number: 10/72, 2^nd number: 1 1/49

10/72 - 50/49 is -1555/1764.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 49 is 3528

Next, find the equivalent fraction of both fractional numbers with denominator 3528
For the 1st fraction, since 72 × 49 = 3528,
10/72 = 10 × 49/72 × 49 = 490/3528
Likewise, for the 2nd fraction, since 49 × 72 = 3528,
50/49 = 50 × 72/49 × 72 = 3600/3528
Subtract the two like fractions:
490/3528 - 3600/3528 = 490 - 3600/3528 = -3110/3528
After reducing the fraction, the answer is -1555/1764

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