Subtract 27/5 from 30/4, Solve 7 2/4

Subtract 27/5 from 30/4

1^st number: 7 2/4, 2^nd number: 5 2/5

30/4 - 27/5 is 21/10.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 5 is 20

Next, find the equivalent fraction of both fractional numbers with denominator 20
For the 1st fraction, since 4 × 5 = 20,
30/4 = 30 × 5/4 × 5 = 150/20
Likewise, for the 2nd fraction, since 5 × 4 = 20,
27/5 = 27 × 4/5 × 4 = 108/20
Subtract the two like fractions:
150/20 - 108/20 = 150 - 108/20 = 42/20
After reducing the fraction, the answer is 21/10
In mixed form: 21/10

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