Subtract 60/21 from 15/80
1st number: 15/80, 2nd number: 2 18/21
15/80 - 60/21 is -299/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 21 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 80 × 21 = 1680,
15/80 = 15 × 21/80 × 21 = 315/1680 - Likewise, for the 2nd fraction, since 21 × 80 = 1680,
60/21 = 60 × 80/21 × 80 = 4800/1680 - Subtract the two like fractions:
315/1680 - 4800/1680 = 315 - 4800/1680 = -4485/1680 - After reducing the fraction, the answer is -299/112
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