Subtract 42/80 from 20/7
1st number: 2 6/7, 2nd number: 42/80
20/7 - 42/80 is 653/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 7 × 80 = 560,
20/7 = 20 × 80/7 × 80 = 1600/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
42/80 = 42 × 7/80 × 7 = 294/560 - Subtract the two like fractions:
1600/560 - 294/560 = 1600 - 294/560 = 1306/560 - After reducing the fraction, the answer is 653/280
- In mixed form: 293/280
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