Add 27/42 and 16/80
27/42 + 16/80 is 59/70.
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,
27/42 = 27 × 40/42 × 40 = 1080/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
16/80 = 16 × 21/80 × 21 = 336/1680 - Add the two like fractions:
1080/1680 + 336/1680 = 1080 + 336/1680 = 1416/1680 - 1416/1680 simplified gives 59/70
- So, 27/42 + 16/80 = 59/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/42+16/80 27/42+32/80 27/84+16/80 81/42+16/80 27/42+48/80