Add 21/30 and 6/25
21/30 + 6/25 is 47/50.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 25 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 30 × 5 = 150,
21/30 = 21 × 5/30 × 5 = 105/150 - Likewise, for the 2nd fraction, since 25 × 6 = 150,
6/25 = 6 × 6/25 × 6 = 36/150 - Add the two like fractions:
105/150 + 36/150 = 105 + 36/150 = 141/150 - 141/150 simplified gives 47/50
- So, 21/30 + 6/25 = 47/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/30+6/25 21/30+12/25 21/60+6/25 21/30+6/50 63/30+6/25 21/30+18/25 21/90+6/25 21/30+6/75 21/30+30/25 21/30+42/25