Add 54/15 and 50/80
1st number: 3 9/15, 2nd number: 50/80
54/15 + 50/80 is 169/40.
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,
54/15 = 54 × 16/15 × 16 = 864/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
50/80 = 50 × 3/80 × 3 = 150/240 - Add the two like fractions:
864/240 + 150/240 = 864 + 150/240 = 1014/240 - 1014/240 simplified gives 169/40
- So, 54/15 + 50/80 = 169/40
In mixed form: 49/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/30+50/80 54/45+50/80 54/75+50/80