Add 54/80 and 6/4
1st number: 54/80, 2nd number: 1 2/4
54/80 + 6/4 is 87/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 4 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
54/80 = 54 × 1/80 × 1 = 54/80 - Likewise, for the 2nd fraction, since 4 × 20 = 80,
6/4 = 6 × 20/4 × 20 = 120/80 - Add the two like fractions:
54/80 + 120/80 = 54 + 120/80 = 174/80 - 174/80 simplified gives 87/40
- So, 54/80 + 6/4 = 87/40
In mixed form: 27/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/80+12/4 54/80+6/8 54/80+18/4 54/80+6/12 54/80+30/4 54/80+6/20 54/80+42/4 54/80+6/28