Subtract 28/21 from 4/50, Solve 4/50

Subtract 28/21 from 4/50

1^st number: 4/50, 2^nd number: 1 7/21

4/50 - 28/21 is -94/75.

Find the least common denominator or LCM of the two denominators:
LCM of 50 and 21 is 1050

Next, find the equivalent fraction of both fractional numbers with denominator 1050
For the 1st fraction, since 50 × 21 = 1050,
4/50 = 4 × 21/50 × 21 = 84/1050
Likewise, for the 2nd fraction, since 21 × 50 = 1050,
28/21 = 28 × 50/21 × 50 = 1400/1050
Subtract the two like fractions:
84/1050 - 1400/1050 = 84 - 1400/1050 = -1316/1050
After reducing the fraction, the answer is -94/75

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