Subtract 27/8 from 72/90
1st number: 72/90, 2nd number: 3 3/8
72/90 - 27/8 is -103/40.
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,
72/90 = 72 × 4/90 × 4 = 288/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
27/8 = 27 × 45/8 × 45 = 1215/360 - Subtract the two like fractions:
288/360 - 1215/360 = 288 - 1215/360 = -927/360 - After reducing the fraction, the answer is -103/40
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