Add 21/6 and 75/63
1st number: 3 3/6, 2nd number: 1 12/63
21/6 + 75/63 is 197/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 6 × 21 = 126,
21/6 = 21 × 21/6 × 21 = 441/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
75/63 = 75 × 2/63 × 2 = 150/126 - Add the two like fractions:
441/126 + 150/126 = 441 + 150/126 = 591/126 - 591/126 simplified gives 197/42
- So, 21/6 + 75/63 = 197/42
In mixed form: 429/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/6+75/63 21/12+75/63 63/6+75/63 21/18+75/63 21/30+75/63 21/42+75/63