Subtract 42/21 from 4/24
1st number: 4/24, 2nd number: 2 0/21
4/24 - 42/21 is -11/6.
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,
4/24 = 4 × 7/24 × 7 = 28/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
42/21 = 42 × 8/21 × 8 = 336/168 - Subtract the two like fractions:
28/168 - 336/168 = 28 - 336/168 = -308/168 - After reducing the fraction, the answer is -11/6
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