Add 28/14 and 54/80
1st number: 2 0/14, 2nd number: 54/80
28/14 + 54/80 is 107/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 14 × 40 = 560,
28/14 = 28 × 40/14 × 40 = 1120/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
54/80 = 54 × 7/80 × 7 = 378/560 - Add the two like fractions:
1120/560 + 378/560 = 1120 + 378/560 = 1498/560 - 1498/560 simplified gives 107/40
- So, 28/14 + 54/80 = 107/40
In mixed form: 227/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/14+54/80 84/14+54/80 28/42+54/80 28/70+54/80 28/98+54/80