Subtract 18/24 from 75/21
1st number: 3 12/21, 2nd number: 18/24
75/21 - 18/24 is 79/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
75/21 = 75 × 8/21 × 8 = 600/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
18/24 = 18 × 7/24 × 7 = 126/168 - Subtract the two like fractions:
600/168 - 126/168 = 600 - 126/168 = 474/168 - After reducing the fraction, the answer is 79/28
- In mixed form: 223/28
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