Subtract 3/50 from 9/21, Solve 9/21

Subtract 3/50 from 9/21

9/21 - 3/50 is 129/350.

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

Next, find the equivalent fraction of both fractional numbers with denominator 1050
For the 1st fraction, since 21 × 50 = 1050,
9/21 = 9 × 50/21 × 50 = 450/1050
Likewise, for the 2nd fraction, since 50 × 21 = 1050,
3/50 = 3 × 21/50 × 21 = 63/1050
Subtract the two like fractions:
450/1050 - 63/1050 = 450 - 63/1050 = 387/1050
After reducing the fraction, the answer is 129/350

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