Subtract 81/45 from 2/4
1st number: 2/4, 2nd number: 1 36/45
2/4 - 81/45 is -13/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
2/4 = 2 × 45/4 × 45 = 90/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
81/45 = 81 × 4/45 × 4 = 324/180 - Subtract the two like fractions:
90/180 - 324/180 = 90 - 324/180 = -234/180 - After reducing the fraction, the answer is -13/10
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