Subtract 90/54 from 20/35
1st number: 20/35, 2nd number: 1 36/54
20/35 - 90/54 is -23/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 54 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 35 × 54 = 1890,
20/35 = 20 × 54/35 × 54 = 1080/1890 - Likewise, for the 2nd fraction, since 54 × 35 = 1890,
90/54 = 90 × 35/54 × 35 = 3150/1890 - Subtract the two like fractions:
1080/1890 - 3150/1890 = 1080 - 3150/1890 = -2070/1890 - After reducing the fraction, the answer is -23/21
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