Subtract 49/42 from 7/50, Solve 7/50

Subtract 49/42 from 7/50

1^st number: 7/50, 2^nd number: 1 7/42

7/50 - 49/42 is -77/75.

Find the least common denominator or LCM of the two denominators:
LCM of 50 and 42 is 1050

Next, find the equivalent fraction of both fractional numbers with denominator 1050
For the 1st fraction, since 50 × 21 = 1050,
7/50 = 7 × 21/50 × 21 = 147/1050
Likewise, for the 2nd fraction, since 42 × 25 = 1050,
49/42 = 49 × 25/42 × 25 = 1225/1050
Subtract the two like fractions:
147/1050 - 1225/1050 = 147 - 1225/1050 = -1078/1050
After reducing the fraction, the answer is -77/75

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