Add 6/80 and 18/42
6/80 + 18/42 is 141/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 42 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 80 × 21 = 1680,
6/80 = 6 × 21/80 × 21 = 126/1680 - Likewise, for the 2nd fraction, since 42 × 40 = 1680,
18/42 = 18 × 40/42 × 40 = 720/1680 - Add the two like fractions:
126/1680 + 720/1680 = 126 + 720/1680 = 846/1680 - 846/1680 simplified gives 141/280
- So, 6/80 + 18/42 = 141/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/80+18/42 6/80+36/42 6/80+18/84 18/80+18/42 6/80+54/42 30/80+18/42 6/80+90/42 42/80+18/42