Subtract 9/21 from 6/45
645 - 921 is -31105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 21 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
645 = 6 × 745 × 7 = 42315 - Likewise, for the 2nd fraction, since 21 × 15 = 315,
921 = 9 × 1521 × 15 = 135315 - Subtract the two like fractions:
42315 - 135315 = 42 - 135315 = -93315 - After reducing the fraction, the answer is -31105
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