Add 21/4 and 40/14
1st number: 5 1/4, 2nd number: 2 12/14
21/4 + 40/14 is 227/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 14 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
21/4 = 21 × 7/4 × 7 = 147/28 - Likewise, for the 2nd fraction, since 14 × 2 = 28,
40/14 = 40 × 2/14 × 2 = 80/28 - Add the two like fractions:
147/28 + 80/28 = 147 + 80/28 = 227/28 - So, 21/4 + 40/14 = 227/28
In mixed form: 83/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/4+40/14 21/4+80/14 21/8+40/14 21/4+40/28 63/4+40/14 21/12+40/14 21/4+40/42 21/20+40/14 21/4+40/70 21/28+40/14 21/4+40/98