Add 81/42 and 14/35
1st number: 1 39/42, 2nd number: 14/35
81/42 + 14/35 is 163/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 35 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
81/42 = 81 × 5/42 × 5 = 405/210 - Likewise, for the 2nd fraction, since 35 × 6 = 210,
14/35 = 14 × 6/35 × 6 = 84/210 - Add the two like fractions:
405/210 + 84/210 = 405 + 84/210 = 489/210 - 489/210 simplified gives 163/70
- So, 81/42 + 14/35 = 163/70
In mixed form: 223/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/42+28/35 81/84+14/35 81/42+14/70 81/42+42/35 81/42+70/35 81/42+98/35