Add 12/35 and 72/20
1st number: 12/35, 2nd number: 3 12/20
12/35 + 72/20 is 138/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 35 × 4 = 140,
12/35 = 12 × 4/35 × 4 = 48/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
72/20 = 72 × 7/20 × 7 = 504/140 - Add the two like fractions:
48/140 + 504/140 = 48 + 504/140 = 552/140 - 552/140 simplified gives 138/35
- So, 12/35 + 72/20 = 138/35
In mixed form: 333/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/35+72/20 12/70+72/20 12/35+72/40 36/35+72/20 12/35+72/60 60/35+72/20 84/35+72/20