Subtract 5/35 from 70/90
70/90 - 5/35 is 40/63.
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,
70/90 = 70 × 7/90 × 7 = 490/630 - Likewise, for the 2nd fraction, since 35 × 18 = 630,
5/35 = 5 × 18/35 × 18 = 90/630 - Subtract the two like fractions:
490/630 - 90/630 = 490 - 90/630 = 400/630 - After reducing the fraction, the answer is 40/63
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