Subtract 45/18 from 40/70
1st number: 40/70, 2nd number: 2 9/18
40/70 - 45/18 is -27/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 18 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
40/70 = 40 × 9/70 × 9 = 360/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
45/18 = 45 × 35/18 × 35 = 1575/630 - Subtract the two like fractions:
360/630 - 1575/630 = 360 - 1575/630 = -1215/630 - After reducing the fraction, the answer is -27/14
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