Add 30/7 and 45/10
1st number: 4 2/7, 2nd number: 4 5/10
30/7 + 45/10 is 123/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 7 × 10 = 70,
30/7 = 30 × 10/7 × 10 = 300/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
45/10 = 45 × 7/10 × 7 = 315/70 - Add the two like fractions:
300/70 + 315/70 = 300 + 315/70 = 615/70 - 615/70 simplified gives 123/14
- So, 30/7 + 45/10 = 123/14
In mixed form: 811/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/7+45/10 30/7+90/10 30/14+45/10 30/7+45/20 90/7+45/10 30/21+45/10 30/7+45/30 30/35+45/10 30/7+45/50 30/49+45/10 30/7+45/70