Add 7/20 and 40/54
7/20 + 40/54 is 589/540.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 54 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 20 × 27 = 540,
7/20 = 7 × 27/20 × 27 = 189/540 - Likewise, for the 2nd fraction, since 54 × 10 = 540,
40/54 = 40 × 10/54 × 10 = 400/540 - Add the two like fractions:
189/540 + 400/540 = 189 + 400/540 = 589/540 - So, 7/20 + 40/54 = 589/540
In mixed form: 149/540
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/20+40/54 7/20+80/54 7/40+40/54 21/20+40/54 7/60+40/54 35/20+40/54 49/20+40/54