Subtract 42/48 from 15/49
15/49 - 42/48 is -223/392.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 48 is 2352
Next, find the equivalent fraction of both fractional numbers with denominator 2352 - For the 1st fraction, since 49 × 48 = 2352,
15/49 = 15 × 48/49 × 48 = 720/2352 - Likewise, for the 2nd fraction, since 48 × 49 = 2352,
42/48 = 42 × 49/48 × 49 = 2058/2352 - Subtract the two like fractions:
720/2352 - 2058/2352 = 720 - 2058/2352 = -1338/2352 - After reducing the fraction, the answer is -223/392
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