Add 28/70 and 60/45
1st number: 28/70, 2nd number: 1 15/45
28/70 + 60/45 is 26/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
28/70 = 28 × 9/70 × 9 = 252/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
60/45 = 60 × 14/45 × 14 = 840/630 - Add the two like fractions:
252/630 + 840/630 = 252 + 840/630 = 1092/630 - 1092/630 simplified gives 26/15
- So, 28/70 + 60/45 = 26/15
In mixed form: 111/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/70+60/45 28/70+60/90 84/70+60/45