Subtract 7/70 from 84/90
84/90 - 7/70 is 5/6.
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,
84/90 = 84 × 7/90 × 7 = 588/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
7/70 = 7 × 9/70 × 9 = 63/630 - Subtract the two like fractions:
588/630 - 63/630 = 588 - 63/630 = 525/630 - After reducing the fraction, the answer is 5/6
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