Subtract 90/24 from 42/70
1st number: 42/70, 2nd number: 3 18/24
42/70 - 90/24 is -63/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 24 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 70 × 12 = 840,
42/70 = 42 × 12/70 × 12 = 504/840 - Likewise, for the 2nd fraction, since 24 × 35 = 840,
90/24 = 90 × 35/24 × 35 = 3150/840 - Subtract the two like fractions:
504/840 - 3150/840 = 504 - 3150/840 = -2646/840 - After reducing the fraction, the answer is -63/20
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