Subtract 72/18 from 45/35
1st number: 1 10/35, 2nd number: 4 0/18
45/35 - 72/18 is -19/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 18 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 35 × 18 = 630,
45/35 = 45 × 18/35 × 18 = 810/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
72/18 = 72 × 35/18 × 35 = 2520/630 - Subtract the two like fractions:
810/630 - 2520/630 = 810 - 2520/630 = -1710/630 - After reducing the fraction, the answer is -19/7
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