Subtract 40/4 from 72/9
1st number: 8 0/9, 2nd number: 10 0/4
72/9 - 40/4 is -2/1.
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,
72/9 = 72 × 4/9 × 4 = 288/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
40/4 = 40 × 9/4 × 9 = 360/36 - Subtract the two like fractions:
288/36 - 360/36 = 288 - 360/36 = -72/36 - After reducing the fraction, the answer is -2/1
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