Subtract 45/24 from 21/4, Solve 5 1/4

Subtract 45/24 from 21/4

1^st number: 5 1/4, 2^nd number: 1 21/24

21/4 - 45/24 is 27/8.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 24 is 24

Next, find the equivalent fraction of both fractional numbers with denominator 24
For the 1st fraction, since 4 × 6 = 24,
21/4 = 21 × 6/4 × 6 = 126/24
Likewise, for the 2nd fraction, since 24 × 1 = 24,
45/24 = 45 × 1/24 × 1 = 45/24
Subtract the two like fractions:
126/24 - 45/24 = 126 - 45/24 = 81/24
After reducing the fraction, the answer is 27/8
In mixed form: 33/8

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