Add 84/63 and 35/4
1st number: 1 21/63, 2nd number: 8 3/4
84/63 + 35/4 is 121/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 4 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
84/63 = 84 × 4/63 × 4 = 336/252 - Likewise, for the 2nd fraction, since 4 × 63 = 252,
35/4 = 35 × 63/4 × 63 = 2205/252 - Add the two like fractions:
336/252 + 2205/252 = 336 + 2205/252 = 2541/252 - 2541/252 simplified gives 121/12
- So, 84/63 + 35/4 = 121/12
In mixed form: 101/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/63+70/4 84/63+35/8 84/63+35/12 84/63+35/20 84/63+35/28