Add 27/10 and 70/20
1st number: 2 7/10, 2nd number: 3 10/20
27/10 + 70/20 is 31/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
27/10 = 27 × 2/10 × 2 = 54/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
70/20 = 70 × 1/20 × 1 = 70/20 - Add the two like fractions:
54/20 + 70/20 = 54 + 70/20 = 124/20 - 124/20 simplified gives 31/5
- So, 27/10 + 70/20 = 31/5
In mixed form: 61/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/10+70/20 27/20+70/20 27/10+70/40 81/10+70/20 27/30+70/20 27/10+70/60 27/50+70/20 27/70+70/20