Subtract 30/70 from 12/9
1st number: 1 3/9, 2nd number: 30/70
12/9 - 30/70 is 19/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 9 × 70 = 630,
12/9 = 12 × 70/9 × 70 = 840/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
30/70 = 30 × 9/70 × 9 = 270/630 - Subtract the two like fractions:
840/630 - 270/630 = 840 - 270/630 = 570/630 - After reducing the fraction, the answer is 19/21
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