Add 42/35 and 72/27
1st number: 1 7/35, 2nd number: 2 18/27
42/35 + 72/27 is 58/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 27 is 945
Next, find the equivalent fraction of both fractional numbers with denominator 945 - For the 1st fraction, since 35 × 27 = 945,
42/35 = 42 × 27/35 × 27 = 1134/945 - Likewise, for the 2nd fraction, since 27 × 35 = 945,
72/27 = 72 × 35/27 × 35 = 2520/945 - Add the two like fractions:
1134/945 + 2520/945 = 1134 + 2520/945 = 3654/945 - 3654/945 simplified gives 58/15
- So, 42/35 + 72/27 = 58/15
In mixed form: 313/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/35+72/27 42/70+72/27 42/35+72/54 42/35+72/81