Add 45/7 and 12/54
1st number: 6 3/7, 2nd number: 12/54
45/7 + 12/54 is 419/63.
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,
45/7 = 45 × 54/7 × 54 = 2430/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
12/54 = 12 × 7/54 × 7 = 84/378 - Add the two like fractions:
2430/378 + 84/378 = 2430 + 84/378 = 2514/378 - 2514/378 simplified gives 419/63
- So, 45/7 + 12/54 = 419/63
In mixed form: 641/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/7+12/54 45/7+24/54 45/14+12/54 45/7+36/54 45/21+12/54 45/7+60/54 45/35+12/54 45/7+84/54 45/49+12/54