Subtract 81/15 from 1/80
1st number: 1/80, 2nd number: 5 6/15
1/80 - 81/15 is -431/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 15 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
1/80 = 1 × 3/80 × 3 = 3/240 - Likewise, for the 2nd fraction, since 15 × 16 = 240,
81/15 = 81 × 16/15 × 16 = 1296/240 - Subtract the two like fractions:
3/240 - 1296/240 = 3 - 1296/240 = -1293/240 - After reducing the fraction, the answer is -431/80
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