Add 70/28 and 9/45
1st number: 2 14/28, 2nd number: 9/45
70/28 + 9/45 is 27/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 45 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
70/28 = 70 × 45/28 × 45 = 3150/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
9/45 = 9 × 28/45 × 28 = 252/1260 - Add the two like fractions:
3150/1260 + 252/1260 = 3150 + 252/1260 = 3402/1260 - 3402/1260 simplified gives 27/10
- So, 70/28 + 9/45 = 27/10
In mixed form: 27/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/28+18/45 70/56+9/45 70/28+9/90 70/28+27/45 70/84+9/45 70/28+63/45