Add 72/35 and 12/9
1st number: 2 2/35, 2nd number: 1 3/9
72/35 + 12/9 is 356/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 9 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 35 × 9 = 315,
72/35 = 72 × 9/35 × 9 = 648/315 - Likewise, for the 2nd fraction, since 9 × 35 = 315,
12/9 = 12 × 35/9 × 35 = 420/315 - Add the two like fractions:
648/315 + 420/315 = 648 + 420/315 = 1068/315 - 1068/315 simplified gives 356/105
- So, 72/35 + 12/9 = 356/105
In mixed form: 341/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/35+24/9 72/70+12/9 72/35+12/18 72/35+36/9 72/35+12/27 72/35+60/9 72/35+12/45 72/35+84/9 72/35+12/63