Add 49/70 and 4/81
49/70 + 4/81 is 607/810.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 81 is 5670
Next, find the equivalent fraction of both fractional numbers with denominator 5670 - For the 1st fraction, since 70 × 81 = 5670,
49/70 = 49 × 81/70 × 81 = 3969/5670 - Likewise, for the 2nd fraction, since 81 × 70 = 5670,
4/81 = 4 × 70/81 × 70 = 280/5670 - Add the two like fractions:
3969/5670 + 280/5670 = 3969 + 280/5670 = 4249/5670 - 4249/5670 simplified gives 607/810
- So, 49/70 + 4/81 = 607/810
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/70+4/81 49/70+8/81 49/70+12/81 49/70+20/81 49/70+28/81