Add 45/20 and 12/35
1st number: 2 5/20, 2nd number: 12/35
45/20 + 12/35 is 363/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
45/20 = 45 × 7/20 × 7 = 315/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
12/35 = 12 × 4/35 × 4 = 48/140 - Add the two like fractions:
315/140 + 48/140 = 315 + 48/140 = 363/140 - So, 45/20 + 12/35 = 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: 90/20+12/35 45/20+24/35 45/40+12/35 45/20+12/70 45/20+36/35 45/60+12/35 45/20+60/35 45/20+84/35