Subtract 30/7 from 8/40
1st number: 8/40, 2nd number: 4 2/7
8/40 - 30/7 is -143/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 7 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
8/40 = 8 × 7/40 × 7 = 56/280 - Likewise, for the 2nd fraction, since 7 × 40 = 280,
30/7 = 30 × 40/7 × 40 = 1200/280 - Subtract the two like fractions:
56/280 - 1200/280 = 56 - 1200/280 = -1144/280 - After reducing the fraction, the answer is -143/35
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