Subtract 70/18 from 42/27
1st number: 1 15/27, 2nd number: 3 16/18
42/27 - 70/18 is -7/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 18 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 27 × 2 = 54,
42/27 = 42 × 2/27 × 2 = 84/54 - Likewise, for the 2nd fraction, since 18 × 3 = 54,
70/18 = 70 × 3/18 × 3 = 210/54 - Subtract the two like fractions:
84/54 - 210/54 = 84 - 210/54 = -126/54 - After reducing the fraction, the answer is -7/3
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