Subtract 7/24 from 75/20, Solve 3 15/20

Subtract 7/24 from 75/20

1^st number: 3 15/20, 2^nd number: 7/24

75/20 - 7/24 is 83/24.

Find the least common denominator or LCM of the two denominators:
LCM of 20 and 24 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 20 × 6 = 120,
75/20 = 75 × 6/20 × 6 = 450/120
Likewise, for the 2nd fraction, since 24 × 5 = 120,
7/24 = 7 × 5/24 × 5 = 35/120
Subtract the two like fractions:
450/120 - 35/120 = 450 - 35/120 = 415/120
After reducing the fraction, the answer is 83/24
In mixed form: 311/24

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