Subtract 84/45 from 20/14
1st number: 1 6/14, 2nd number: 1 39/45
20/14 - 84/45 is -46/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 14 × 45 = 630,
20/14 = 20 × 45/14 × 45 = 900/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
84/45 = 84 × 14/45 × 14 = 1176/630 - Subtract the two like fractions:
900/630 - 1176/630 = 900 - 1176/630 = -276/630 - After reducing the fraction, the answer is -46/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/14-84/45 20/28-84/45 20/14-84/90 60/14-84/45 20/42-84/45 20/70-84/45 20/98-84/45