Add 36/21 and 7/63
1st number: 1 15/21, 2nd number: 7/63
36/21 + 7/63 is 115/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 21 × 3 = 63,
36/21 = 36 × 3/21 × 3 = 108/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
7/63 = 7 × 1/63 × 1 = 7/63 - Add the two like fractions:
108/63 + 7/63 = 108 + 7/63 = 115/63 - So, 36/21 + 7/63 = 115/63
In mixed form: 152/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/21+7/63 36/21+14/63 36/42+7/63 36/21+21/63 36/63+7/63 36/21+35/63 36/21+49/63