Add 4/84 and 75/40
1st number: 4/84, 2nd number: 1 35/40
4/84 + 75/40 is 323/168.
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,
75/40 = 75 × 21/40 × 21 = 1575/840 - Add the two like fractions:
40/840 + 1575/840 = 40 + 1575/840 = 1615/840 - 1615/840 simplified gives 323/168
- So, 4/84 + 75/40 = 323/168
In mixed form: 1155/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/84+75/40 4/84+75/80 12/84+75/40 20/84+75/40 28/84+75/40