Subtract 90/70 from 8/24
1st number: 8/24, 2nd number: 1 20/70
8/24 - 90/70 is -20/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 70 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 24 × 35 = 840,
8/24 = 8 × 35/24 × 35 = 280/840 - Likewise, for the 2nd fraction, since 70 × 12 = 840,
90/70 = 90 × 12/70 × 12 = 1080/840 - Subtract the two like fractions:
280/840 - 1080/840 = 280 - 1080/840 = -800/840 - After reducing the fraction, the answer is -20/21
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