Add 42/36 and 63/80
1st number: 1 6/36, 2nd number: 63/80
42/36 + 63/80 is 469/240.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 36 × 20 = 720,
42/36 = 42 × 20/36 × 20 = 840/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
63/80 = 63 × 9/80 × 9 = 567/720 - Add the two like fractions:
840/720 + 567/720 = 840 + 567/720 = 1407/720 - 1407/720 simplified gives 469/240
- So, 42/36 + 63/80 = 469/240
In mixed form: 1229/240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/36+63/80 42/72+63/80