Add 36/42 and 6/80
36/42 + 6/80 is 261/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 42 × 40 = 1680,
36/42 = 36 × 40/42 × 40 = 1440/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
6/80 = 6 × 21/80 × 21 = 126/1680 - Add the two like fractions:
1440/1680 + 126/1680 = 1440 + 126/1680 = 1566/1680 - 1566/1680 simplified gives 261/280
- So, 36/42 + 6/80 = 261/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/42+6/80 36/42+12/80 36/84+6/80 36/42+18/80 36/42+30/80 36/42+42/80