Subtract 9/30 from 21/25
21/25 - 9/30 is 27/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 30 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 25 × 6 = 150,
21/25 = 21 × 6/25 × 6 = 126/150 - Likewise, for the 2nd fraction, since 30 × 5 = 150,
9/30 = 9 × 5/30 × 5 = 45/150 - Subtract the two like fractions:
126/150 - 45/150 = 126 - 45/150 = 81/150 - After reducing the fraction, the answer is 27/50
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