Add 12/63 and 63/40
1st number: 12/63, 2nd number: 1 23/40
12/63 + 63/40 is 1483/840.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 40 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 63 × 40 = 2520,
12/63 = 12 × 40/63 × 40 = 480/2520 - Likewise, for the 2nd fraction, since 40 × 63 = 2520,
63/40 = 63 × 63/40 × 63 = 3969/2520 - Add the two like fractions:
480/2520 + 3969/2520 = 480 + 3969/2520 = 4449/2520 - 4449/2520 simplified gives 1483/840
- So, 12/63 + 63/40 = 1483/840
In mixed form: 1643/840
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/63+63/40 12/63+63/80 36/63+63/40 60/63+63/40 84/63+63/40