Subtract 4/50 from 21/45
21/45 - 4/50 is 29/75.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 45 × 10 = 450,
21/45 = 21 × 10/45 × 10 = 210/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
4/50 = 4 × 9/50 × 9 = 36/450 - Subtract the two like fractions:
210/450 - 36/450 = 210 - 36/450 = 174/450 - After reducing the fraction, the answer is 29/75
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