Add 45/28 and 48/80
1st number: 1 17/28, 2nd number: 48/80
45/28 + 48/80 is 309/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 28 × 20 = 560,
45/28 = 45 × 20/28 × 20 = 900/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
48/80 = 48 × 7/80 × 7 = 336/560 - Add the two like fractions:
900/560 + 336/560 = 900 + 336/560 = 1236/560 - 1236/560 simplified gives 309/140
- So, 45/28 + 48/80 = 309/140
In mixed form: 229/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/28+48/80 45/28+96/80 45/56+48/80 45/84+48/80