Subtract 28/20 from 40/48
1st number: 40/48, 2nd number: 1 8/20
40/48 - 28/20 is -17/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 20 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
40/48 = 40 × 5/48 × 5 = 200/240 - Likewise, for the 2nd fraction, since 20 × 12 = 240,
28/20 = 28 × 12/20 × 12 = 336/240 - Subtract the two like fractions:
200/240 - 336/240 = 200 - 336/240 = -136/240 - After reducing the fraction, the answer is -17/30
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