Add 1/84 and 27/40
1/84 + 27/40 is 577/840.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 40 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 84 × 10 = 840,
1/84 = 1 × 10/84 × 10 = 10/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
27/40 = 27 × 21/40 × 21 = 567/840 - Add the two like fractions:
10/840 + 567/840 = 10 + 567/840 = 577/840 - So, 1/84 + 27/40 = 577/840
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/84+27/40 1/84+54/40 1/84+27/80 3/84+27/40 1/84+81/40 5/84+27/40 7/84+27/40