Subtract 9/40 from 2/45
2/45 - 9/40 is -13/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
2/45 = 2 × 8/45 × 8 = 16/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
9/40 = 9 × 9/40 × 9 = 81/360 - Subtract the two like fractions:
16/360 - 81/360 = 16 - 81/360 = -65/360 - After reducing the fraction, the answer is -13/72
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