Add 20/15 and 54/80
1st number: 1 5/15, 2nd number: 54/80
20/15 + 54/80 is 241/120.
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,
54/80 = 54 × 3/80 × 3 = 162/240 - Add the two like fractions:
320/240 + 162/240 = 320 + 162/240 = 482/240 - 482/240 simplified gives 241/120
- So, 20/15 + 54/80 = 241/120
In mixed form: 21/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/15+54/80 20/30+54/80 60/15+54/80 20/45+54/80 20/75+54/80