Add 27/10 and 30/42
1st number: 2 7/10, 2nd number: 30/42
27/10 + 30/42 is 239/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 10 × 21 = 210,
27/10 = 27 × 21/10 × 21 = 567/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
30/42 = 30 × 5/42 × 5 = 150/210 - Add the two like fractions:
567/210 + 150/210 = 567 + 150/210 = 717/210 - 717/210 simplified gives 239/70
- So, 27/10 + 30/42 = 239/70
In mixed form: 329/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/10+30/42 27/10+60/42 27/20+30/42 27/10+30/84 81/10+30/42 27/10+90/42 27/30+30/42 27/50+30/42 27/70+30/42