Subtract 20/40 from 75/7
1st number: 10 5/7, 2nd number: 20/40
75/7 - 20/40 is 143/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 7 × 40 = 280,
75/7 = 75 × 40/7 × 40 = 3000/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
20/40 = 20 × 7/40 × 7 = 140/280 - Subtract the two like fractions:
3000/280 - 140/280 = 3000 - 140/280 = 2860/280 - After reducing the fraction, the answer is 143/14
- In mixed form: 103/14
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