Add 56/63 and 18/40
56/63 + 18/40 is 241/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 40 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 63 × 40 = 2520,
56/63 = 56 × 40/63 × 40 = 2240/2520 - Likewise, for the 2nd fraction, since 40 × 63 = 2520,
18/40 = 18 × 63/40 × 63 = 1134/2520 - Add the two like fractions:
2240/2520 + 1134/2520 = 2240 + 1134/2520 = 3374/2520 - 3374/2520 simplified gives 241/180
- So, 56/63 + 18/40 = 241/180
In mixed form: 161/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/63+36/40 56/63+18/80 56/63+54/40 56/63+90/40