Add 30/63 and 40/56
30/63 + 40/56 is 25/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 63 × 8 = 504,
30/63 = 30 × 8/63 × 8 = 240/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
40/56 = 40 × 9/56 × 9 = 360/504 - Add the two like fractions:
240/504 + 360/504 = 240 + 360/504 = 600/504 - 600/504 simplified gives 25/21
- So, 30/63 + 40/56 = 25/21
In mixed form: 14/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/63+40/56 30/63+80/56 90/63+40/56