Add 72/80 and 36/63
72/80 + 36/63 is 103/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 63 is 5040
Next, find the equivalent fraction of both fractional numbers with denominator 5040 - For the 1st fraction, since 80 × 63 = 5040,
72/80 = 72 × 63/80 × 63 = 4536/5040 - Likewise, for the 2nd fraction, since 63 × 80 = 5040,
36/63 = 36 × 80/63 × 80 = 2880/5040 - Add the two like fractions:
4536/5040 + 2880/5040 = 4536 + 2880/5040 = 7416/5040 - 7416/5040 simplified gives 103/70
- So, 72/80 + 36/63 = 103/70
In mixed form: 133/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/80+72/63