Add 21/45 and 14/4
1st number: 21/45, 2nd number: 3 2/4
21/45 + 14/4 is 119/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 4 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
21/45 = 21 × 4/45 × 4 = 84/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
14/4 = 14 × 45/4 × 45 = 630/180 - Add the two like fractions:
84/180 + 630/180 = 84 + 630/180 = 714/180 - 714/180 simplified gives 119/30
- So, 21/45 + 14/4 = 119/30
In mixed form: 329/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/45+14/4 21/45+28/4 21/90+14/4 21/45+14/8 63/45+14/4 21/45+42/4 21/45+14/12 21/45+70/4 21/45+14/20 21/45+98/4 21/45+14/28