Subtract 20/5 from 7/24, Solve 7/24

Subtract 20/5 from 7/24

1^st number: 7/24, 2^nd number: 4 0/5

7/24 - 20/5 is -89/24.

Find the least common denominator or LCM of the two denominators:
LCM of 24 and 5 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 24 × 5 = 120,
7/24 = 7 × 5/24 × 5 = 35/120
Likewise, for the 2nd fraction, since 5 × 24 = 120,
20/5 = 20 × 24/5 × 24 = 480/120
Subtract the two like fractions:
35/120 - 480/120 = 35 - 480/120 = -445/120
After reducing the fraction, the answer is -89/24

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