Add 54/80 and 90/96
54/80 + 90/96 is 129/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 96 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 80 × 6 = 480,
54/80 = 54 × 6/80 × 6 = 324/480 - Likewise, for the 2nd fraction, since 96 × 5 = 480,
90/96 = 90 × 5/96 × 5 = 450/480 - Add the two like fractions:
324/480 + 450/480 = 324 + 450/480 = 774/480 - 774/480 simplified gives 129/80
- So, 54/80 + 90/96 = 129/80
In mixed form: 149/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: