Subtract 81/49 from 7/5
1st number: 1 2/5, 2nd number: 1 32/49
7/5 - 81/49 is -62/245.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 49 is 245
Next, find the equivalent fraction of both fractional numbers with denominator 245 - For the 1st fraction, since 5 × 49 = 245,
7/5 = 7 × 49/5 × 49 = 343/245 - Likewise, for the 2nd fraction, since 49 × 5 = 245,
81/49 = 81 × 5/49 × 5 = 405/245 - Subtract the two like fractions:
343/245 - 405/245 = 343 - 405/245 = -62/245
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