Subtract 21/60 from 90/14, Solve 6 6/14

Subtract 21/60 from 90/14

1^st number: 6 6/14, 2^nd number: 21/60

90/14 - 21/60 is 851/140.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 60 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 14 × 30 = 420,
90/14 = 90 × 30/14 × 30 = 2700/420
Likewise, for the 2nd fraction, since 60 × 7 = 420,
21/60 = 21 × 7/60 × 7 = 147/420
Subtract the two like fractions:
2700/420 - 147/420 = 2700 - 147/420 = 2553/420
After reducing the fraction, the answer is 851/140
In mixed form: 611/140

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