Add 81/30 and 14/4
1st number: 2 21/30, 2nd number: 3 2/4
81/30 + 14/4 is 31/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 4 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
81/30 = 81 × 2/30 × 2 = 162/60 - Likewise, for the 2nd fraction, since 4 × 15 = 60,
14/4 = 14 × 15/4 × 15 = 210/60 - Add the two like fractions:
162/60 + 210/60 = 162 + 210/60 = 372/60 - 372/60 simplified gives 31/5
- So, 81/30 + 14/4 = 31/5
In mixed form: 61/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/30+28/4 81/60+14/4 81/30+14/8 81/30+42/4 81/90+14/4 81/30+14/12 81/30+70/4 81/30+14/20 81/30+98/4 81/30+14/28