Add 36/40 and 72/63
1st number: 36/40, 2nd number: 1 9/63
36/40 + 72/63 is 143/70.
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,
36/40 = 36 × 63/40 × 63 = 2268/2520 - Likewise, for the 2nd fraction, since 63 × 40 = 2520,
72/63 = 72 × 40/63 × 40 = 2880/2520 - Add the two like fractions:
2268/2520 + 2880/2520 = 2268 + 2880/2520 = 5148/2520 - 5148/2520 simplified gives 143/70
- So, 36/40 + 72/63 = 143/70
In mixed form: 23/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/40+72/63 36/80+72/63