Add 18/56 and 40/80
18/56 + 40/80 is 23/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 56 × 10 = 560,
18/56 = 18 × 10/56 × 10 = 180/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
40/80 = 40 × 7/80 × 7 = 280/560 - Add the two like fractions:
180/560 + 280/560 = 180 + 280/560 = 460/560 - 460/560 simplified gives 23/28
- So, 18/56 + 40/80 = 23/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/56+40/80 54/56+40/80 90/56+40/80