Add 49/28 and 30/80
1st number: 1 21/28, 2nd number: 30/80
49/28 + 30/80 is 17/8.
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,
49/28 = 49 × 20/28 × 20 = 980/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
30/80 = 30 × 7/80 × 7 = 210/560 - Add the two like fractions:
980/560 + 210/560 = 980 + 210/560 = 1190/560 - 1190/560 simplified gives 17/8
- So, 49/28 + 30/80 = 17/8
In mixed form: 21/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/28+30/80 49/28+60/80 49/56+30/80 49/28+90/80 49/84+30/80