Add 21/27 and 3/35
21/27 + 3/35 is 272/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 35 is 945
Next, find the equivalent fraction of both fractional numbers with denominator 945 - For the 1st fraction, since 27 × 35 = 945,
21/27 = 21 × 35/27 × 35 = 735/945 - Likewise, for the 2nd fraction, since 35 × 27 = 945,
3/35 = 3 × 27/35 × 27 = 81/945 - Add the two like fractions:
735/945 + 81/945 = 735 + 81/945 = 816/945 - 816/945 simplified gives 272/315
- So, 21/27 + 3/35 = 272/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/27+3/35 21/27+6/35 21/54+3/35 21/27+3/70 63/27+3/35 21/27+9/35 21/81+3/35 21/27+15/35 21/27+21/35