Add 21/27 and 25/35
21/27 + 25/35 is 94/63.
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,
25/35 = 25 × 27/35 × 27 = 675/945 - Add the two like fractions:
735/945 + 675/945 = 735 + 675/945 = 1410/945 - 1410/945 simplified gives 94/63
- So, 21/27 + 25/35 = 94/63
In mixed form: 131/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/27+25/35 21/27+50/35 21/54+25/35 21/27+25/70 63/27+25/35 21/27+75/35 21/81+25/35