Add 3/30 and 21/75
3/30 + 21/75 is 19/50.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 75 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 30 × 5 = 150,
3/30 = 3 × 5/30 × 5 = 15/150 - Likewise, for the 2nd fraction, since 75 × 2 = 150,
21/75 = 21 × 2/75 × 2 = 42/150 - Add the two like fractions:
15/150 + 42/150 = 15 + 42/150 = 57/150 - 57/150 simplified gives 19/50
- So, 3/30 + 21/75 = 19/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/30+21/75 3/30+42/75 3/60+21/75 9/30+21/75 3/30+63/75 3/90+21/75 15/30+21/75 21/30+21/75