Add 54/80 and 15/10
1st number: 54/80, 2nd number: 1 5/10
54/80 + 15/10 is 87/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 10 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 10 × 8 = 80,
15/10 = 15 × 8/10 × 8 = 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 + 15/10 = 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+30/10 54/80+15/20 54/80+45/10 54/80+15/30 54/80+75/10 54/80+15/50 54/80+15/70