Subtract 84/70 from 21/24
1st number: 21/24, 2nd number: 1 14/70
21/24 - 84/70 is -13/40.
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,
21/24 = 21 × 35/24 × 35 = 735/840 - Likewise, for the 2nd fraction, since 70 × 12 = 840,
84/70 = 84 × 12/70 × 12 = 1008/840 - Subtract the two like fractions:
735/840 - 1008/840 = 735 - 1008/840 = -273/840 - After reducing the fraction, the answer is -13/40
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