Add 15/28 and 30/25
1st number: 15/28, 2nd number: 1 5/25
15/28 + 30/25 is 243/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 25 is 700
Next, find the equivalent fraction of both fractional numbers with denominator 700 - For the 1st fraction, since 28 × 25 = 700,
15/28 = 15 × 25/28 × 25 = 375/700 - Likewise, for the 2nd fraction, since 25 × 28 = 700,
30/25 = 30 × 28/25 × 28 = 840/700 - Add the two like fractions:
375/700 + 840/700 = 375 + 840/700 = 1215/700 - 1215/700 simplified gives 243/140
- So, 15/28 + 30/25 = 243/140
In mixed form: 1103/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/28+30/25 15/28+60/25 15/56+30/25 15/28+30/50 45/28+30/25 15/28+90/25 15/84+30/25 15/28+30/75 75/28+30/25