Add 75/3 and 21/45
1st number: 25 0/3, 2nd number: 21/45
75/3 + 21/45 is 382/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 3 × 15 = 45,
75/3 = 75 × 15/3 × 15 = 1125/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
21/45 = 21 × 1/45 × 1 = 21/45 - Add the two like fractions:
1125/45 + 21/45 = 1125 + 21/45 = 1146/45 - 1146/45 simplified gives 382/15
- So, 75/3 + 21/45 = 382/15
In mixed form: 257/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/3+42/45 75/6+21/45 75/3+21/90 75/3+63/45 75/9+21/45 75/15+21/45 75/21+21/45