Add 63/40 and 42/63
1st number: 1 23/40, 2nd number: 42/63
63/40 + 42/63 is 269/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 63 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 40 × 63 = 2520,
63/40 = 63 × 63/40 × 63 = 3969/2520 - Likewise, for the 2nd fraction, since 63 × 40 = 2520,
42/63 = 42 × 40/63 × 40 = 1680/2520 - Add the two like fractions:
3969/2520 + 1680/2520 = 3969 + 1680/2520 = 5649/2520 - 5649/2520 simplified gives 269/120
- So, 63/40 + 42/63 = 269/120
In mixed form: 229/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/40+84/63 63/80+42/63