Add 40/8 and 21/14
1st number: 5 0/8, 2nd number: 1 7/14
40/8 + 21/14 is 13/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 14 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
40/8 = 40 × 7/8 × 7 = 280/56 - Likewise, for the 2nd fraction, since 14 × 4 = 56,
21/14 = 21 × 4/14 × 4 = 84/56 - Add the two like fractions:
280/56 + 84/56 = 280 + 84/56 = 364/56 - 364/56 simplified gives 13/2
- So, 40/8 + 21/14 = 13/2
In mixed form: 61/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/8+21/14 40/8+42/14 40/16+21/14 40/8+21/28 40/8+63/14 40/24+21/14 40/8+21/42 40/8+21/70 40/56+21/14 40/8+21/98