Subtract 42/32 from 30/18
1st number: 1 12/18, 2nd number: 1 10/32
30/18 - 42/32 is 17/48.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 32 is 288
Next, find the equivalent fraction of both fractional numbers with denominator 288 - For the 1st fraction, since 18 × 16 = 288,
30/18 = 30 × 16/18 × 16 = 480/288 - Likewise, for the 2nd fraction, since 32 × 9 = 288,
42/32 = 42 × 9/32 × 9 = 378/288 - Subtract the two like fractions:
480/288 - 378/288 = 480 - 378/288 = 102/288 - After reducing the fraction, the answer is 17/48
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