Add 12/35 and 45/20
1st number: 12/35, 2nd number: 2 5/20
12/35 + 45/20 is 363/140.
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,
45/20 = 45 × 7/20 × 7 = 315/140 - Add the two like fractions:
48/140 + 315/140 = 48 + 315/140 = 363/140 - So, 12/35 + 45/20 = 363/140
In mixed form: 283/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/35+45/20 12/35+90/20 12/70+45/20 12/35+45/40 36/35+45/20 12/35+45/60 60/35+45/20 84/35+45/20