Subtract 42/70 from 84/40
1st number: 2 4/40, 2nd number: 42/70
84/40 - 42/70 is 3/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
84/40 = 84 × 7/40 × 7 = 588/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
42/70 = 42 × 4/70 × 4 = 168/280 - Subtract the two like fractions:
588/280 - 168/280 = 588 - 168/280 = 420/280 - After reducing the fraction, the answer is 3/2
- In mixed form: 11/2
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