Add 56/63 and 18/80
56/63 + 18/80 is 401/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 80 is 5040
Next, find the equivalent fraction of both fractional numbers with denominator 5040 - For the 1st fraction, since 63 × 80 = 5040,
56/63 = 56 × 80/63 × 80 = 4480/5040 - Likewise, for the 2nd fraction, since 80 × 63 = 5040,
18/80 = 18 × 63/80 × 63 = 1134/5040 - Add the two like fractions:
4480/5040 + 1134/5040 = 4480 + 1134/5040 = 5614/5040 - 5614/5040 simplified gives 401/360
- So, 56/63 + 18/80 = 401/360
In mixed form: 141/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/63+36/80 56/63+54/80 56/63+90/80