Add 40/35 and 21/56
1st number: 1 5/35, 2nd number: 21/56
40/35 + 21/56 is 85/56.
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,
40/35 = 40 × 8/35 × 8 = 320/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
21/56 = 21 × 5/56 × 5 = 105/280 - Add the two like fractions:
320/280 + 105/280 = 320 + 105/280 = 425/280 - 425/280 simplified gives 85/56
- So, 40/35 + 21/56 = 85/56
In mixed form: 129/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/35+21/56 40/35+42/56 40/70+21/56 40/35+63/56