Add 3/10 and 27/15
1st number: 3/10, 2nd number: 1 12/15
3/10 + 27/15 is 21/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 10 × 3 = 30,
3/10 = 3 × 3/10 × 3 = 9/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
27/15 = 27 × 2/15 × 2 = 54/30 - Add the two like fractions:
9/30 + 54/30 = 9 + 54/30 = 63/30 - 63/30 simplified gives 21/10
- So, 3/10 + 27/15 = 21/10
In mixed form: 21/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/10+27/15 3/10+54/15 3/20+27/15 3/10+27/30 9/10+27/15 3/10+81/15 3/30+27/15 3/10+27/45 15/10+27/15 3/50+27/15 3/10+27/75 21/10+27/15 3/70+27/15