Add 4/84 and 5/40
4/84 + 5/40 is 29/168.
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,
4/84 = 4 × 10/84 × 10 = 40/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
5/40 = 5 × 21/40 × 21 = 105/840 - Add the two like fractions:
40/840 + 105/840 = 40 + 105/840 = 145/840 - 145/840 simplified gives 29/168
- So, 4/84 + 5/40 = 29/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/84+5/40 4/84+10/40 4/84+5/80 12/84+5/40 4/84+15/40 20/84+5/40 4/84+25/40 28/84+5/40 4/84+35/40