Add 35/80 and 45/28
1st number: 35/80, 2nd number: 1 17/28
35/80 + 45/28 is 229/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 28 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
35/80 = 35 × 7/80 × 7 = 245/560 - Likewise, for the 2nd fraction, since 28 × 20 = 560,
45/28 = 45 × 20/28 × 20 = 900/560 - Add the two like fractions:
245/560 + 900/560 = 245 + 900/560 = 1145/560 - 1145/560 simplified gives 229/112
- So, 35/80 + 45/28 = 229/112
In mixed form: 25/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/80+45/28 35/80+90/28 35/80+45/56 35/80+45/84