Subtract 90/21 from 27/5, Solve 5 2/5

Subtract 90/21 from 27/5

1^st number: 5 2/5, 2^nd number: 4 6/21

27/5 - 90/21 is 39/35.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 21 is 105

Next, find the equivalent fraction of both fractional numbers with denominator 105
For the 1st fraction, since 5 × 21 = 105,
27/5 = 27 × 21/5 × 21 = 567/105
Likewise, for the 2nd fraction, since 21 × 5 = 105,
90/21 = 90 × 5/21 × 5 = 450/105
Subtract the two like fractions:
567/105 - 450/105 = 567 - 450/105 = 117/105
After reducing the fraction, the answer is 39/35
In mixed form: 14/35

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