Add 81/7 and 14/30
1st number: 11 4/7, 2nd number: 14/30
81/7 + 14/30 is 1264/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 7 × 30 = 210,
81/7 = 81 × 30/7 × 30 = 2430/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
14/30 = 14 × 7/30 × 7 = 98/210 - Add the two like fractions:
2430/210 + 98/210 = 2430 + 98/210 = 2528/210 - 2528/210 simplified gives 1264/105
- So, 81/7 + 14/30 = 1264/105
In mixed form: 124/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/7+28/30 81/14+14/30 81/7+14/60 81/7+42/30 81/21+14/30 81/7+14/90 81/7+70/30 81/35+14/30 81/7+98/30 81/49+14/30