Subtract 81/40 from 4/9
1st number: 4/9, 2nd number: 2 1/40
4/9 - 81/40 is -569/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 9 × 40 = 360,
4/9 = 4 × 40/9 × 40 = 160/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
81/40 = 81 × 9/40 × 9 = 729/360 - Subtract the two like fractions:
160/360 - 729/360 = 160 - 729/360 = -569/360
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