Add 21/75 and 30/8
1st number: 21/75, 2nd number: 3 6/8
21/75 + 30/8 is 403/100.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 8 is 600
Next, find the equivalent fraction of both fractional numbers with denominator 600 - For the 1st fraction, since 75 × 8 = 600,
21/75 = 21 × 8/75 × 8 = 168/600 - Likewise, for the 2nd fraction, since 8 × 75 = 600,
30/8 = 30 × 75/8 × 75 = 2250/600 - Add the two like fractions:
168/600 + 2250/600 = 168 + 2250/600 = 2418/600 - 2418/600 simplified gives 403/100
- So, 21/75 + 30/8 = 403/100
In mixed form: 43/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/75+30/8 21/75+60/8 21/75+30/16 63/75+30/8 21/75+90/8 21/75+30/24 21/75+30/40 21/75+30/56