Add 28/56 and 36/80
28/56 + 36/80 is 19/20.
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,
28/56 = 28 × 10/56 × 10 = 280/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
36/80 = 36 × 7/80 × 7 = 252/560 - Add the two like fractions:
280/560 + 252/560 = 280 + 252/560 = 532/560 - 532/560 simplified gives 19/20
- So, 28/56 + 36/80 = 19/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/56+72/80 84/56+36/80