Add 63/21 and 75/4
1st number: 3 0/21, 2nd number: 18 3/4
63/21 + 75/4 is 87/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
63/21 = 63 × 4/21 × 4 = 252/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
75/4 = 75 × 21/4 × 21 = 1575/84 - Add the two like fractions:
252/84 + 1575/84 = 252 + 1575/84 = 1827/84 - 1827/84 simplified gives 87/4
- So, 63/21 + 75/4 = 87/4
In mixed form: 213/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/42+75/4 63/21+75/8 63/21+75/12 63/21+75/20 63/21+75/28