Subtract 84/45 from 27/40
1st number: 27/40, 2nd number: 1 39/45
27/40 - 84/45 is -143/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
27/40 = 27 × 9/40 × 9 = 243/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
84/45 = 84 × 8/45 × 8 = 672/360 - Subtract the two like fractions:
243/360 - 672/360 = 243 - 672/360 = -429/360 - After reducing the fraction, the answer is -143/120
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