Add 36/20 and 72/63
1st number: 1 16/20, 2nd number: 1 9/63
36/20 + 72/63 is 103/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 20 × 63 = 1260,
36/20 = 36 × 63/20 × 63 = 2268/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
72/63 = 72 × 20/63 × 20 = 1440/1260 - Add the two like fractions:
2268/1260 + 1440/1260 = 2268 + 1440/1260 = 3708/1260 - 3708/1260 simplified gives 103/35
- So, 36/20 + 72/63 = 103/35
In mixed form: 233/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/20+72/63 36/40+72/63 36/60+72/63