Add 4/70 and 8/81
4/70 + 8/81 is 442/2835.
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,
4/70 = 4 × 81/70 × 81 = 324/5670 - Likewise, for the 2nd fraction, since 81 × 70 = 5670,
8/81 = 8 × 70/81 × 70 = 560/5670 - Add the two like fractions:
324/5670 + 560/5670 = 324 + 560/5670 = 884/5670 - 884/5670 simplified gives 442/2835
- So, 4/70 + 8/81 = 442/2835
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/70+8/81 4/70+16/81 12/70+8/81 4/70+24/81 20/70+8/81 4/70+40/81 28/70+8/81 4/70+56/81