Add 84/63 and 30/60
1st number: 1 21/63, 2nd number: 30/60
84/63 + 30/60 is 11/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 60 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
84/63 = 84 × 20/63 × 20 = 1680/1260 - Likewise, for the 2nd fraction, since 60 × 21 = 1260,
30/60 = 30 × 21/60 × 21 = 630/1260 - Add the two like fractions:
1680/1260 + 630/1260 = 1680 + 630/1260 = 2310/1260 - 2310/1260 simplified gives 11/6
- So, 84/63 + 30/60 = 11/6
In mixed form: 15/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/63+90/60