Subtract 28/35 from 1/18
1/18 - 28/35 is -67/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 35 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 18 × 35 = 630,
1/18 = 1 × 35/18 × 35 = 35/630 - Likewise, for the 2nd fraction, since 35 × 18 = 630,
28/35 = 28 × 18/35 × 18 = 504/630 - Subtract the two like fractions:
35/630 - 504/630 = 35 - 504/630 = -469/630 - After reducing the fraction, the answer is -67/90
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