Add 21/35 and 80/98
21/35 + 80/98 is 347/245.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 98 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 35 × 14 = 490,
21/35 = 21 × 14/35 × 14 = 294/490 - Likewise, for the 2nd fraction, since 98 × 5 = 490,
80/98 = 80 × 5/98 × 5 = 400/490 - Add the two like fractions:
294/490 + 400/490 = 294 + 400/490 = 694/490 - 694/490 simplified gives 347/245
- So, 21/35 + 80/98 = 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: 42/35+80/98 21/70+80/98 63/35+80/98