Add 18/25 and 20/64
18/25 + 20/64 is 413/400.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 64 is 1600
Next, find the equivalent fraction of both fractional numbers with denominator 1600 - For the 1st fraction, since 25 × 64 = 1600,
18/25 = 18 × 64/25 × 64 = 1152/1600 - Likewise, for the 2nd fraction, since 64 × 25 = 1600,
20/64 = 20 × 25/64 × 25 = 500/1600 - Add the two like fractions:
1152/1600 + 500/1600 = 1152 + 500/1600 = 1652/1600 - 1652/1600 simplified gives 413/400
- So, 18/25 + 20/64 = 413/400
In mixed form: 113/400
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/25+20/64 18/25+40/64 18/50+20/64 54/25+20/64 18/25+60/64 18/75+20/64 90/25+20/64