Add 54/80 and 8/15
54/80 + 8/15 is 29/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 15 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
54/80 = 54 × 3/80 × 3 = 162/240 - Likewise, for the 2nd fraction, since 15 × 16 = 240,
8/15 = 8 × 16/15 × 16 = 128/240 - Add the two like fractions:
162/240 + 128/240 = 162 + 128/240 = 290/240 - 290/240 simplified gives 29/24
- So, 54/80 + 8/15 = 29/24
In mixed form: 15/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/80+16/15 54/80+8/30 54/80+24/15 54/80+8/45 54/80+40/15 54/80+8/75 54/80+56/15