Subtract 21/18 from 40/50
1st number: 40/50, 2nd number: 1 3/18
40/50 - 21/18 is -11/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 18 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 50 × 9 = 450,
40/50 = 40 × 9/50 × 9 = 360/450 - Likewise, for the 2nd fraction, since 18 × 25 = 450,
21/18 = 21 × 25/18 × 25 = 525/450 - Subtract the two like fractions:
360/450 - 525/450 = 360 - 525/450 = -165/450 - After reducing the fraction, the answer is -11/30
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