Add 75/70 and 27/28
1st number: 1 5/70, 2nd number: 27/28
75/70 + 27/28 is 57/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
75/70 = 75 × 2/70 × 2 = 150/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
27/28 = 27 × 5/28 × 5 = 135/140 - Add the two like fractions:
150/140 + 135/140 = 150 + 135/140 = 285/140 - 285/140 simplified gives 57/28
- So, 75/70 + 27/28 = 57/28
In mixed form: 21/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/70+54/28 75/70+27/56 75/70+81/28 75/70+27/84