Subtract 20/6 from 90/45
1st number: 2 0/45, 2nd number: 3 2/6
90/45 - 20/6 is -4/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 6 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
90/45 = 90 × 2/45 × 2 = 180/90 - Likewise, for the 2nd fraction, since 6 × 15 = 90,
20/6 = 20 × 15/6 × 15 = 300/90 - Subtract the two like fractions:
180/90 - 300/90 = 180 - 300/90 = -120/90 - After reducing the fraction, the answer is -4/3
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