Subtract 90/9 from 7/70
1st number: 7/70, 2nd number: 10 0/9
7/70 - 90/9 is -99/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 9 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
7/70 = 7 × 9/70 × 9 = 63/630 - Likewise, for the 2nd fraction, since 9 × 70 = 630,
90/9 = 90 × 70/9 × 70 = 6300/630 - Subtract the two like fractions:
63/630 - 6300/630 = 63 - 6300/630 = -6237/630 - After reducing the fraction, the answer is -99/10
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