Add 15/7 and 30/54
1st number: 2 1/7, 2nd number: 30/54
15/7 + 30/54 is 170/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 7 × 54 = 378,
15/7 = 15 × 54/7 × 54 = 810/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
30/54 = 30 × 7/54 × 7 = 210/378 - Add the two like fractions:
810/378 + 210/378 = 810 + 210/378 = 1020/378 - 1020/378 simplified gives 170/63
- So, 15/7 + 30/54 = 170/63
In mixed form: 244/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/7+30/54 15/7+60/54 15/14+30/54 45/7+30/54 15/7+90/54 15/21+30/54 75/7+30/54 15/35+30/54 15/49+30/54