Add 84/63 and 14/20
1st number: 1 21/63, 2nd number: 14/20
84/63 + 14/20 is 61/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 20 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 20 × 63 = 1260,
14/20 = 14 × 63/20 × 63 = 882/1260 - Add the two like fractions:
1680/1260 + 882/1260 = 1680 + 882/1260 = 2562/1260 - 2562/1260 simplified gives 61/30
- So, 84/63 + 14/20 = 61/30
In mixed form: 21/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/63+28/20 84/63+14/40 84/63+42/20 84/63+14/60 84/63+70/20 84/63+98/20