Add 12/35 and 45/56
12/35 + 45/56 is 321/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 35 × 8 = 280,
12/35 = 12 × 8/35 × 8 = 96/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
45/56 = 45 × 5/56 × 5 = 225/280 - Add the two like fractions:
96/280 + 225/280 = 96 + 225/280 = 321/280 - So, 12/35 + 45/56 = 321/280
In mixed form: 141/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/35+45/56 12/35+90/56 12/70+45/56 36/35+45/56 60/35+45/56 84/35+45/56