Subtract 81/3 from 42/28
1st number: 1 14/28, 2nd number: 27 0/3
42/28 - 81/3 is -51/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 3 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 3 × 28 = 84,
81/3 = 81 × 28/3 × 28 = 2268/84 - Subtract the two like fractions:
126/84 - 2268/84 = 126 - 2268/84 = -2142/84 - After reducing the fraction, the answer is -51/2
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