Add 7/28 and 45/9
1st number: 7/28, 2nd number: 5 0/9
7/28 + 45/9 is 21/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
7/28 = 7 × 9/28 × 9 = 63/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
45/9 = 45 × 28/9 × 28 = 1260/252 - Add the two like fractions:
63/252 + 1260/252 = 63 + 1260/252 = 1323/252 - 1323/252 simplified gives 21/4
- So, 7/28 + 45/9 = 21/4
In mixed form: 51/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/28+45/9 7/28+90/9 7/56+45/9 7/28+45/18 21/28+45/9 7/84+45/9 7/28+45/27 35/28+45/9 49/28+45/9 7/28+45/63