Subtract 6/50 from 90/21, Solve 4 6/21

Subtract 6/50 from 90/21

1^st number: 4 6/21, 2^nd number: 6/50

90/21 - 6/50 is 729/175.

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,
90/21 = 90 × 50/21 × 50 = 4500/1050
Likewise, for the 2nd fraction, since 50 × 21 = 1050,
6/50 = 6 × 21/50 × 21 = 126/1050
Subtract the two like fractions:
4500/1050 - 126/1050 = 4500 - 126/1050 = 4374/1050
After reducing the fraction, the answer is 729/175
In mixed form: 429/175

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