Add 18/25 and 42/49
18/25 + 42/49 is 276/175.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 49 is 1225
Next, find the equivalent fraction of both fractional numbers with denominator 1225 - For the 1st fraction, since 25 × 49 = 1225,
18/25 = 18 × 49/25 × 49 = 882/1225 - Likewise, for the 2nd fraction, since 49 × 25 = 1225,
42/49 = 42 × 25/49 × 25 = 1050/1225 - Add the two like fractions:
882/1225 + 1050/1225 = 882 + 1050/1225 = 1932/1225 - 1932/1225 simplified gives 276/175
- So, 18/25 + 42/49 = 276/175
In mixed form: 1101/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/25+42/49 18/25+84/49 18/50+42/49 18/25+42/98 54/25+42/49 18/75+42/49 90/25+42/49