Add 21/25 and 12/16
21/25 + 12/16 is 159/100.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 16 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 25 × 16 = 400,
21/25 = 21 × 16/25 × 16 = 336/400 - Likewise, for the 2nd fraction, since 16 × 25 = 400,
12/16 = 12 × 25/16 × 25 = 300/400 - Add the two like fractions:
336/400 + 300/400 = 336 + 300/400 = 636/400 - 636/400 simplified gives 159/100
- So, 21/25 + 12/16 = 159/100
In mixed form: 159/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/25+12/16 21/25+24/16 21/50+12/16 21/25+12/32 63/25+12/16 21/25+36/16 21/75+12/16 21/25+12/48 21/25+60/16 21/25+12/80 21/25+84/16