Add 45/21 and 4/14
1st number: 2 3/21, 2nd number: 4/14
45/21 + 4/14 is 17/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 14 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
45/21 = 45 × 2/21 × 2 = 90/42 - Likewise, for the 2nd fraction, since 14 × 3 = 42,
4/14 = 4 × 3/14 × 3 = 12/42 - Add the two like fractions:
90/42 + 12/42 = 90 + 12/42 = 102/42 - 102/42 simplified gives 17/7
- So, 45/21 + 4/14 = 17/7
In mixed form: 23/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/21+4/14 45/21+8/14 45/42+4/14 45/21+4/28 45/21+12/14 45/63+4/14 45/21+4/42 45/21+20/14 45/21+4/70 45/21+28/14 45/21+4/98