Subtract 21/6 from 42/28
1st number: 1 14/28, 2nd number: 3 3/6
42/28 - 21/6 is -2/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 6 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
42/28 = 42 × 3/28 × 3 = 126/84 - Likewise, for the 2nd fraction, since 6 × 14 = 84,
21/6 = 21 × 14/6 × 14 = 294/84 - Subtract the two like fractions:
126/84 - 294/84 = 126 - 294/84 = -168/84 - After reducing the fraction, the answer is -2/1
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