Add 21/75 and 1/30
21/75 + 1/30 is 47/150.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 30 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 75 × 2 = 150,
21/75 = 21 × 2/75 × 2 = 42/150 - Likewise, for the 2nd fraction, since 30 × 5 = 150,
1/30 = 1 × 5/30 × 5 = 5/150 - Add the two like fractions:
42/150 + 5/150 = 42 + 5/150 = 47/150 - So, 21/75 + 1/30 = 47/150
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/75+1/30 21/75+2/30 21/75+1/60 63/75+1/30 21/75+3/30 21/75+1/90 21/75+5/30 21/75+7/30