Add 42/63 and 10/84
42/63 + 10/84 is 11/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
42/63 = 42 × 4/63 × 4 = 168/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
10/84 = 10 × 3/84 × 3 = 30/252 - Add the two like fractions:
168/252 + 30/252 = 168 + 30/252 = 198/252 - 198/252 simplified gives 11/14
- So, 42/63 + 10/84 = 11/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/63+10/84 42/63+20/84 42/63+30/84 42/63+50/84 42/63+70/84