Add 20/15 and 5/80
1st number: 1 5/15, 2nd number: 5/80
20/15 + 5/80 is 67/48.
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,
20/15 = 20 × 16/15 × 16 = 320/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
5/80 = 5 × 3/80 × 3 = 15/240 - Add the two like fractions:
320/240 + 15/240 = 320 + 15/240 = 335/240 - 335/240 simplified gives 67/48
- So, 20/15 + 5/80 = 67/48
In mixed form: 119/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/15+5/80 20/15+10/80 20/30+5/80 60/15+5/80 20/15+15/80 20/45+5/80 20/15+25/80 20/75+5/80 20/15+35/80