Subtract 28/90 from 54/40
1st number: 1 14/40, 2nd number: 28/90
54/40 - 28/90 is 187/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
54/40 = 54 × 9/40 × 9 = 486/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
28/90 = 28 × 4/90 × 4 = 112/360 - Subtract the two like fractions:
486/360 - 112/360 = 486 - 112/360 = 374/360 - After reducing the fraction, the answer is 187/180
- In mixed form: 17/180
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