Add 84/2 and 21/63
1st number: 42 0/2, 2nd number: 21/63
84/2 + 21/63 is 127/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 2 × 63 = 126,
84/2 = 84 × 63/2 × 63 = 5292/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
21/63 = 21 × 2/63 × 2 = 42/126 - Add the two like fractions:
5292/126 + 42/126 = 5292 + 42/126 = 5334/126 - 5334/126 simplified gives 127/3
- So, 84/2 + 21/63 = 127/3
In mixed form: 421/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/2+42/63 84/4+21/63 84/6+21/63 84/10+21/63 84/14+21/63