Add 42/98 and 40/56
42/98 + 40/56 is 8/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 56 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 98 × 4 = 392,
42/98 = 42 × 4/98 × 4 = 168/392 - Likewise, for the 2nd fraction, since 56 × 7 = 392,
40/56 = 40 × 7/56 × 7 = 280/392 - Add the two like fractions:
168/392 + 280/392 = 168 + 280/392 = 448/392 - 448/392 simplified gives 8/7
- So, 42/98 + 40/56 = 8/7
In mixed form: 11/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/98+40/56 42/98+80/56