Subtract 70/50 from 18/30
1st number: 18/30, 2nd number: 1 20/50
18/30 - 70/50 is -4/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 50 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 30 × 5 = 150,
18/30 = 18 × 5/30 × 5 = 90/150 - Likewise, for the 2nd fraction, since 50 × 3 = 150,
70/50 = 70 × 3/50 × 3 = 210/150 - Subtract the two like fractions:
90/150 - 210/150 = 90 - 210/150 = -120/150 - After reducing the fraction, the answer is -4/5
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