Add 7/36 and 28/80
7/36 + 28/80 is 49/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 36 × 20 = 720,
7/36 = 7 × 20/36 × 20 = 140/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
28/80 = 28 × 9/80 × 9 = 252/720 - Add the two like fractions:
140/720 + 252/720 = 140 + 252/720 = 392/720 - 392/720 simplified gives 49/90
- So, 7/36 + 28/80 = 49/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/36+28/80 7/36+56/80 7/72+28/80 21/36+28/80 7/36+84/80 35/36+28/80 49/36+28/80