Subtract 28/90 from 1/35
1/35 - 28/90 is -89/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 35 × 18 = 630,
1/35 = 1 × 18/35 × 18 = 18/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
28/90 = 28 × 7/90 × 7 = 196/630 - Subtract the two like fractions:
18/630 - 196/630 = 18 - 196/630 = -178/630 - After reducing the fraction, the answer is -89/315
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