Add 36/80 and 63/45
1st number: 36/80, 2nd number: 1 18/45
36/80 + 63/45 is 37/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 45 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
36/80 = 36 × 9/80 × 9 = 324/720 - Likewise, for the 2nd fraction, since 45 × 16 = 720,
63/45 = 63 × 16/45 × 16 = 1008/720 - Add the two like fractions:
324/720 + 1008/720 = 324 + 1008/720 = 1332/720 - 1332/720 simplified gives 37/20
- So, 36/80 + 63/45 = 37/20
In mixed form: 117/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/80+63/45 36/80+63/90