Add 7/45 and 84/28
1st number: 7/45, 2nd number: 3 0/28
7/45 + 84/28 is 142/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 28 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 45 × 28 = 1260,
7/45 = 7 × 28/45 × 28 = 196/1260 - Likewise, for the 2nd fraction, since 28 × 45 = 1260,
84/28 = 84 × 45/28 × 45 = 3780/1260 - Add the two like fractions:
196/1260 + 3780/1260 = 196 + 3780/1260 = 3976/1260 - 3976/1260 simplified gives 142/45
- So, 7/45 + 84/28 = 142/45
In mixed form: 37/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/45+84/28 7/90+84/28 7/45+84/56 21/45+84/28 35/45+84/28 49/45+84/28