Subtract 42/27 from 20/8
1st number: 2 4/8, 2nd number: 1 15/27
20/8 - 42/27 is 17/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 27 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 8 × 27 = 216,
20/8 = 20 × 27/8 × 27 = 540/216 - Likewise, for the 2nd fraction, since 27 × 8 = 216,
42/27 = 42 × 8/27 × 8 = 336/216 - Subtract the two like fractions:
540/216 - 336/216 = 540 - 336/216 = 204/216 - After reducing the fraction, the answer is 17/18
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