Add 84/40 and 14/42
1st number: 2 4/40, 2nd number: 14/42
84/40 + 14/42 is 73/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 42 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
84/40 = 84 × 21/40 × 21 = 1764/840 - Likewise, for the 2nd fraction, since 42 × 20 = 840,
14/42 = 14 × 20/42 × 20 = 280/840 - Add the two like fractions:
1764/840 + 280/840 = 1764 + 280/840 = 2044/840 - 2044/840 simplified gives 73/30
- So, 84/40 + 14/42 = 73/30
In mixed form: 213/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/40+28/42 84/80+14/42 84/40+14/84 84/40+70/42 84/40+98/42