Subtract 42/7 from 28/36
1st number: 28/36, 2nd number: 6 0/7
28/36 - 42/7 is -47/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 7 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
28/36 = 28 × 7/36 × 7 = 196/252 - Likewise, for the 2nd fraction, since 7 × 36 = 252,
42/7 = 42 × 36/7 × 36 = 1512/252 - Subtract the two like fractions:
196/252 - 1512/252 = 196 - 1512/252 = -1316/252 - After reducing the fraction, the answer is -47/9
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