Subtract 24/84 from 70/42
1st number: 1 28/42, 2nd number: 24/84
70/42 - 24/84 is 29/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
70/42 = 70 × 2/42 × 2 = 140/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
24/84 = 24 × 1/84 × 1 = 24/84 - Subtract the two like fractions:
140/84 - 24/84 = 140 - 24/84 = 116/84 - After reducing the fraction, the answer is 29/21
- In mixed form: 18/21
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