Subtract 42/27 from 12/72
1st number: 12/72, 2nd number: 1 15/27
12/72 - 42/27 is -25/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 27 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 72 × 3 = 216,
12/72 = 12 × 3/72 × 3 = 36/216 - Likewise, for the 2nd fraction, since 27 × 8 = 216,
42/27 = 42 × 8/27 × 8 = 336/216 - Subtract the two like fractions:
36/216 - 336/216 = 36 - 336/216 = -300/216 - After reducing the fraction, the answer is -25/18
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