Add 10/15 and 20/80
10/15 + 20/80 is 11/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
10/15 = 10 × 16/15 × 16 = 160/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
20/80 = 20 × 3/80 × 3 = 60/240 - Add the two like fractions:
160/240 + 60/240 = 160 + 60/240 = 220/240 - 220/240 simplified gives 11/12
- So, 10/15 + 20/80 = 11/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/15+20/80 10/15+40/80 10/30+20/80 30/15+20/80 10/15+60/80 10/45+20/80 50/15+20/80 10/75+20/80 70/15+20/80