Subtract 72/70 from 18/24
1st number: 18/24, 2nd number: 1 2/70
18/24 - 72/70 is -39/140.
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,
18/24 = 18 × 35/24 × 35 = 630/840 - Likewise, for the 2nd fraction, since 70 × 12 = 840,
72/70 = 72 × 12/70 × 12 = 864/840 - Subtract the two like fractions:
630/840 - 864/840 = 630 - 864/840 = -234/840 - After reducing the fraction, the answer is -39/140
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