Add 42/49 and 20/8
1st number: 42/49, 2nd number: 2 4/8
42/49 + 20/8 is 47/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 8 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 49 × 8 = 392,
42/49 = 42 × 8/49 × 8 = 336/392 - Likewise, for the 2nd fraction, since 8 × 49 = 392,
20/8 = 20 × 49/8 × 49 = 980/392 - Add the two like fractions:
336/392 + 980/392 = 336 + 980/392 = 1316/392 - 1316/392 simplified gives 47/14
- So, 42/49 + 20/8 = 47/14
In mixed form: 35/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/49+20/8 42/49+40/8 42/98+20/8 42/49+20/16 42/49+60/8 42/49+20/24 42/49+20/40 42/49+20/56