Add 81/5 and 42/35
1st number: 16 1/5, 2nd number: 1 7/35
81/5 + 42/35 is 87/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 35 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 5 × 7 = 35,
81/5 = 81 × 7/5 × 7 = 567/35 - Likewise, for the 2nd fraction, since 35 × 1 = 35,
42/35 = 42 × 1/35 × 1 = 42/35 - Add the two like fractions:
567/35 + 42/35 = 567 + 42/35 = 609/35 - 609/35 simplified gives 87/5
- So, 81/5 + 42/35 = 87/5
In mixed form: 172/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/5+84/35 81/10+42/35 81/5+42/70 81/15+42/35 81/25+42/35 81/35+42/35