Subtract 3/80 from 9/90
9/90 - 3/80 is 1/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 90 × 8 = 720,
9/90 = 9 × 8/90 × 8 = 72/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
3/80 = 3 × 9/80 × 9 = 27/720 - Subtract the two like fractions:
72/720 - 27/720 = 72 - 27/720 = 45/720 - After reducing the fraction, the answer is 1/16
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