Subtract 48/40 from 27/90
1st number: 27/90, 2nd number: 1 8/40
27/90 - 48/40 is -9/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
27/90 = 27 × 4/90 × 4 = 108/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
48/40 = 48 × 9/40 × 9 = 432/360 - Subtract the two like fractions:
108/360 - 432/360 = 108 - 432/360 = -324/360 - After reducing the fraction, the answer is -9/10
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