Subtract 80/35 from 70/40
1st number: 1 30/40, 2nd number: 2 10/35
70/40 - 80/35 is -15/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 35 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
70/40 = 70 × 7/40 × 7 = 490/280 - Likewise, for the 2nd fraction, since 35 × 8 = 280,
80/35 = 80 × 8/35 × 8 = 640/280 - Subtract the two like fractions:
490/280 - 640/280 = 490 - 640/280 = -150/280 - After reducing the fraction, the answer is -15/28
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