Subtract 40/18 from 50/30
1st number: 1 20/30, 2nd number: 2 4/18
50/30 - 40/18 is -5/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
50/30 = 50 × 3/30 × 3 = 150/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
40/18 = 40 × 5/18 × 5 = 200/90 - Subtract the two like fractions:
150/90 - 200/90 = 150 - 200/90 = -50/90 - After reducing the fraction, the answer is -5/9
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