Subtract 3/70 from 6/90
6/90 - 3/70 is 1/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
6/90 = 6 × 7/90 × 7 = 42/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
3/70 = 3 × 9/70 × 9 = 27/630 - Subtract the two like fractions:
42/630 - 27/630 = 42 - 27/630 = 15/630 - After reducing the fraction, the answer is 1/42
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