Subtract 72/70 from 5/45
1st number: 5/45, 2nd number: 1 2/70
5/45 - 72/70 is -289/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
5/45 = 5 × 14/45 × 14 = 70/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
72/70 = 72 × 9/70 × 9 = 648/630 - Subtract the two like fractions:
70/630 - 648/630 = 70 - 648/630 = -578/630 - After reducing the fraction, the answer is -289/315
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