Add 42/70 and 18/49
42/70 + 18/49 is 237/245.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 49 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 70 × 7 = 490,
42/70 = 42 × 7/70 × 7 = 294/490 - Likewise, for the 2nd fraction, since 49 × 10 = 490,
18/49 = 18 × 10/49 × 10 = 180/490 - Add the two like fractions:
294/490 + 180/490 = 294 + 180/490 = 474/490 - 474/490 simplified gives 237/245
- So, 42/70 + 18/49 = 237/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/70+18/49 42/70+36/49 42/70+18/98 42/70+54/49 42/70+90/49