Add 70/45 and 9/28
1st number: 1 25/45, 2nd number: 9/28
70/45 + 9/28 is 473/252.
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,
70/45 = 70 × 28/45 × 28 = 1960/1260 - Likewise, for the 2nd fraction, since 28 × 45 = 1260,
9/28 = 9 × 45/28 × 45 = 405/1260 - Add the two like fractions:
1960/1260 + 405/1260 = 1960 + 405/1260 = 2365/1260 - 2365/1260 simplified gives 473/252
- So, 70/45 + 9/28 = 473/252
In mixed form: 1221/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/45+18/28 70/90+9/28 70/45+9/56 70/45+27/28 70/45+9/84 70/45+45/28 70/45+63/28