Subtract 18/10 from 42/48
1st number: 42/48, 2nd number: 1 8/10
42/48 - 18/10 is -37/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 10 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
42/48 = 42 × 5/48 × 5 = 210/240 - Likewise, for the 2nd fraction, since 10 × 24 = 240,
18/10 = 18 × 24/10 × 24 = 432/240 - Subtract the two like fractions:
210/240 - 432/240 = 210 - 432/240 = -222/240 - After reducing the fraction, the answer is -37/40
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