Add 45/48 and 27/40
45/48 + 27/40 is 129/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 40 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
45/48 = 45 × 5/48 × 5 = 225/240 - Likewise, for the 2nd fraction, since 40 × 6 = 240,
27/40 = 27 × 6/40 × 6 = 162/240 - Add the two like fractions:
225/240 + 162/240 = 225 + 162/240 = 387/240 - 387/240 simplified gives 129/80
- So, 45/48 + 27/40 = 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: 90/48+27/40 45/48+54/40 45/96+27/40 45/48+27/80 45/48+81/40