Add 27/10 and 12/15
1st number: 2 7/10, 2nd number: 12/15
27/10 + 12/15 is 7/2.
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,
27/10 = 27 × 3/10 × 3 = 81/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
12/15 = 12 × 2/15 × 2 = 24/30 - Add the two like fractions:
81/30 + 24/30 = 81 + 24/30 = 105/30 - 105/30 simplified gives 7/2
- So, 27/10 + 12/15 = 7/2
In mixed form: 31/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/10+12/15 27/10+24/15 27/20+12/15 27/10+12/30 81/10+12/15 27/10+36/15 27/30+12/15 27/10+12/45 27/10+60/15 27/50+12/15 27/10+12/75 27/10+84/15 27/70+12/15