Subtract 15/8 from 27/90
1st number: 27/90, 2nd number: 1 7/8
27/90 - 15/8 is -63/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 8 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 8 × 45 = 360,
15/8 = 15 × 45/8 × 45 = 675/360 - Subtract the two like fractions:
108/360 - 675/360 = 108 - 675/360 = -567/360 - After reducing the fraction, the answer is -63/40
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