Subtract 7/45 from 63/81
63/81 - 7/45 is 28/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 45 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 81 × 5 = 405,
63/81 = 63 × 5/81 × 5 = 315/405 - Likewise, for the 2nd fraction, since 45 × 9 = 405,
7/45 = 7 × 9/45 × 9 = 63/405 - Subtract the two like fractions:
315/405 - 63/405 = 315 - 63/405 = 252/405 - After reducing the fraction, the answer is 28/45
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