Subtract 21/4 from 80/9
1st number: 8 8/9, 2nd number: 5 1/4
80/9 - 21/4 is 131/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 9 × 4 = 36,
80/9 = 80 × 4/9 × 4 = 320/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
21/4 = 21 × 9/4 × 9 = 189/36 - Subtract the two like fractions:
320/36 - 189/36 = 320 - 189/36 = 131/36 - In mixed form: 323/36
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