Subtract 16/35 from 15/90
15/90 - 16/35 is -61/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 35 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
15/90 = 15 × 7/90 × 7 = 105/630 - Likewise, for the 2nd fraction, since 35 × 18 = 630,
16/35 = 16 × 18/35 × 18 = 288/630 - Subtract the two like fractions:
105/630 - 288/630 = 105 - 288/630 = -183/630 - After reducing the fraction, the answer is -61/210
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