Add 45/80 and 50/28
1st number: 45/80, 2nd number: 1 22/28
45/80 + 50/28 is 263/112.
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,
45/80 = 45 × 7/80 × 7 = 315/560 - Likewise, for the 2nd fraction, since 28 × 20 = 560,
50/28 = 50 × 20/28 × 20 = 1000/560 - Add the two like fractions:
315/560 + 1000/560 = 315 + 1000/560 = 1315/560 - 1315/560 simplified gives 263/112
- So, 45/80 + 50/28 = 263/112
In mixed form: 239/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/80+50/28 45/80+50/56 45/80+50/84