Subtract 42/12 from 28/35
1st number: 28/35, 2nd number: 3 6/12
28/35 - 42/12 is -27/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 12 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 35 × 12 = 420,
28/35 = 28 × 12/35 × 12 = 336/420 - Likewise, for the 2nd fraction, since 12 × 35 = 420,
42/12 = 42 × 35/12 × 35 = 1470/420 - Subtract the two like fractions:
336/420 - 1470/420 = 336 - 1470/420 = -1134/420 - After reducing the fraction, the answer is -27/10
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