Subtract 7/42 from 18/32
18/32 - 7/42 is 19/48.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 42 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 32 × 21 = 672,
18/32 = 18 × 21/32 × 21 = 378/672 - Likewise, for the 2nd fraction, since 42 × 16 = 672,
7/42 = 7 × 16/42 × 16 = 112/672 - Subtract the two like fractions:
378/672 - 112/672 = 378 - 112/672 = 266/672 - After reducing the fraction, the answer is 19/48
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