Subtract 30/3 from 21/50, Solve 21/50

Subtract 30/3 from 21/50

1^st number: 21/50, 2^nd number: 10 0/3

21/50 - 30/3 is -479/50.

Find the least common denominator or LCM of the two denominators:
LCM of 50 and 3 is 150

Next, find the equivalent fraction of both fractional numbers with denominator 150
For the 1st fraction, since 50 × 3 = 150,
21/50 = 21 × 3/50 × 3 = 63/150
Likewise, for the 2nd fraction, since 3 × 50 = 150,
30/3 = 30 × 50/3 × 50 = 1500/150
Subtract the two like fractions:
63/150 - 1500/150 = 63 - 1500/150 = -1437/150
After reducing the fraction, the answer is -479/50

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