Subtract 3/21 from 28/24
1st number: 1 4/24, 2nd number: 3/21
28/24 - 3/21 is 43/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
28/24 = 28 × 7/24 × 7 = 196/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
3/21 = 3 × 8/21 × 8 = 24/168 - Subtract the two like fractions:
196/168 - 24/168 = 196 - 24/168 = 172/168 - After reducing the fraction, the answer is 43/42
- In mixed form: 11/42
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