Subtract 80/70 from 49/40
1st number: 1 9/40, 2nd number: 1 10/70
49/40 - 80/70 is 23/280.
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,
49/40 = 49 × 7/40 × 7 = 343/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
80/70 = 80 × 4/70 × 4 = 320/280 - Subtract the two like fractions:
343/280 - 320/280 = 343 - 320/280 = 23/280
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