Add 12/40 and 48/54
12/40 + 48/54 is 107/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 54 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 40 × 27 = 1080,
12/40 = 12 × 27/40 × 27 = 324/1080 - Likewise, for the 2nd fraction, since 54 × 20 = 1080,
48/54 = 48 × 20/54 × 20 = 960/1080 - Add the two like fractions:
324/1080 + 960/1080 = 324 + 960/1080 = 1284/1080 - 1284/1080 simplified gives 107/90
- So, 12/40 + 48/54 = 107/90
In mixed form: 117/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/40+48/54 12/40+96/54 12/80+48/54 36/40+48/54 60/40+48/54 84/40+48/54