Subtract 90/30 from 90/35
1st number: 2 20/35, 2nd number: 3 0/30
90/35 - 90/30 is -3/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 35 × 6 = 210,
90/35 = 90 × 6/35 × 6 = 540/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
90/30 = 90 × 7/30 × 7 = 630/210 - Subtract the two like fractions:
540/210 - 630/210 = 540 - 630/210 = -90/210 - After reducing the fraction, the answer is -3/7
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