Add 54/5 and 70/12
1st number: 10 4/5, 2nd number: 5 10/12
54/5 + 70/12 is 499/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 5 × 12 = 60,
54/5 = 54 × 12/5 × 12 = 648/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
70/12 = 70 × 5/12 × 5 = 350/60 - Add the two like fractions:
648/60 + 350/60 = 648 + 350/60 = 998/60 - 998/60 simplified gives 499/30
- So, 54/5 + 70/12 = 499/30
In mixed form: 1619/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/10+70/12 54/5+70/24 54/15+70/12 54/5+70/36 54/25+70/12 54/5+70/60 54/35+70/12 54/5+70/84