Subtract 42/24 from 21/35
1st number: 21/35, 2nd number: 1 18/24
21/35 - 42/24 is -23/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 24 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 35 × 24 = 840,
21/35 = 21 × 24/35 × 24 = 504/840 - Likewise, for the 2nd fraction, since 24 × 35 = 840,
42/24 = 42 × 35/24 × 35 = 1470/840 - Subtract the two like fractions:
504/840 - 1470/840 = 504 - 1470/840 = -966/840 - After reducing the fraction, the answer is -23/20
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