Add 40/49 and 42/70
40/49 + 42/70 is 347/245.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 70 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 49 × 10 = 490,
40/49 = 40 × 10/49 × 10 = 400/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
42/70 = 42 × 7/70 × 7 = 294/490 - Add the two like fractions:
400/490 + 294/490 = 400 + 294/490 = 694/490 - 694/490 simplified gives 347/245
- So, 40/49 + 42/70 = 347/245
In mixed form: 1102/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/49+42/70 40/49+84/70 40/98+42/70