Subtract 30/80 from 50/90
50/90 - 30/80 is 13/72.
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,
50/90 = 50 × 8/90 × 8 = 400/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
30/80 = 30 × 9/80 × 9 = 270/720 - Subtract the two like fractions:
400/720 - 270/720 = 400 - 270/720 = 130/720 - After reducing the fraction, the answer is 13/72
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