Subtract 42/48 from 30/36
30/36 - 42/48 is -1/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 48 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 36 × 4 = 144,
30/36 = 30 × 4/36 × 4 = 120/144 - Likewise, for the 2nd fraction, since 48 × 3 = 144,
42/48 = 42 × 3/48 × 3 = 126/144 - Subtract the two like fractions:
120/144 - 126/144 = 120 - 126/144 = -6/144 - After reducing the fraction, the answer is -1/24
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