Add 54/80 and 30/12
1st number: 54/80, 2nd number: 2 6/12
54/80 + 30/12 is 127/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 12 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 12 × 20 = 240,
30/12 = 30 × 20/12 × 20 = 600/240 - Add the two like fractions:
162/240 + 600/240 = 162 + 600/240 = 762/240 - 762/240 simplified gives 127/40
- So, 54/80 + 30/12 = 127/40
In mixed form: 37/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/80+60/12 54/80+30/24 54/80+90/12 54/80+30/36 54/80+30/60 54/80+30/84