Add 27/70 and 75/20
1st number: 27/70, 2nd number: 3 15/20
27/70 + 75/20 is 579/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
27/70 = 27 × 2/70 × 2 = 54/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
75/20 = 75 × 7/20 × 7 = 525/140 - Add the two like fractions:
54/140 + 525/140 = 54 + 525/140 = 579/140 - So, 27/70 + 75/20 = 579/140
In mixed form: 419/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/70+75/20 27/70+75/40 81/70+75/20 27/70+75/60