Subtract 21/5 from 30/50
1st number: 30/50, 2nd number: 4 1/5
30/50 - 21/5 is -18/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 5 is 50
Next, find the equivalent fraction of both fractional numbers with denominator 50 - For the 1st fraction, since 50 × 1 = 50,
30/50 = 30 × 1/50 × 1 = 30/50 - Likewise, for the 2nd fraction, since 5 × 10 = 50,
21/5 = 21 × 10/5 × 10 = 210/50 - Subtract the two like fractions:
30/50 - 210/50 = 30 - 210/50 = -180/50 - After reducing the fraction, the answer is -18/5
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