Add 25/28 and 75/70
1st number: 25/28, 2nd number: 1 5/70
25/28 + 75/70 is 55/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
25/28 = 25 × 5/28 × 5 = 125/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
75/70 = 75 × 2/70 × 2 = 150/140 - Add the two like fractions:
125/140 + 150/140 = 125 + 150/140 = 275/140 - 275/140 simplified gives 55/28
- So, 25/28 + 75/70 = 55/28
In mixed form: 127/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/28+75/70 25/56+75/70 75/28+75/70 25/84+75/70