Add 48/63 and 45/21
1st number: 48/63, 2nd number: 2 3/21
48/63 + 45/21 is 61/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 21 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
48/63 = 48 × 1/63 × 1 = 48/63 - Likewise, for the 2nd fraction, since 21 × 3 = 63,
45/21 = 45 × 3/21 × 3 = 135/63 - Add the two like fractions:
48/63 + 135/63 = 48 + 135/63 = 183/63 - 183/63 simplified gives 61/21
- So, 48/63 + 45/21 = 61/21
In mixed form: 219/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/63+45/21 48/63+90/21 48/63+45/42 48/63+45/63