Subtract 45/24 from 4/7, Solve 4/7 - 1 21/24 as a fraction

Subtract 45/24 from 4/7

1^st number: 4/7, 2^nd number: 1 21/24

4/7 - 45/24 is -73/56.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 24 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 7 × 24 = 168,
4/7 = 4 × 24/7 × 24 = 96/168
Likewise, for the 2nd fraction, since 24 × 7 = 168,
45/24 = 45 × 7/24 × 7 = 315/168
Subtract the two like fractions:
96/168 - 315/168 = 96 - 315/168 = -219/168
After reducing the fraction, the answer is -73/56

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