Subtract 72/70 from 75/45
1st number: 1 30/45, 2nd number: 1 2/70
75/45 - 72/70 is 67/105.
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,
75/45 = 75 × 14/45 × 14 = 1050/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
72/70 = 72 × 9/70 × 9 = 648/630 - Subtract the two like fractions:
1050/630 - 648/630 = 1050 - 648/630 = 402/630 - After reducing the fraction, the answer is 67/105
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