Add 27/54 and 7/40
27/54 + 7/40 is 27/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 40 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 54 × 20 = 1080,
27/54 = 27 × 20/54 × 20 = 540/1080 - Likewise, for the 2nd fraction, since 40 × 27 = 1080,
7/40 = 7 × 27/40 × 27 = 189/1080 - Add the two like fractions:
540/1080 + 189/1080 = 540 + 189/1080 = 729/1080 - 729/1080 simplified gives 27/40
- So, 27/54 + 7/40 = 27/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 27/54+14/40 27/54+7/80 81/54+7/40 27/54+21/40 27/54+35/40 27/54+49/40