Add 27/35 and 72/42
1st number: 27/35, 2nd number: 1 30/42
27/35 + 72/42 is 87/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 35 × 6 = 210,
27/35 = 27 × 6/35 × 6 = 162/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
72/42 = 72 × 5/42 × 5 = 360/210 - Add the two like fractions:
162/210 + 360/210 = 162 + 360/210 = 522/210 - 522/210 simplified gives 87/35
- So, 27/35 + 72/42 = 87/35
In mixed form: 217/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/35+72/42 27/70+72/42 27/35+72/84 81/35+72/42