Add 63/40 and 3/84
1st number: 1 23/40, 2nd number: 3/84
63/40 + 3/84 is 451/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 84 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
63/40 = 63 × 21/40 × 21 = 1323/840 - Likewise, for the 2nd fraction, since 84 × 10 = 840,
3/84 = 3 × 10/84 × 10 = 30/840 - Add the two like fractions:
1323/840 + 30/840 = 1323 + 30/840 = 1353/840 - 1353/840 simplified gives 451/280
- So, 63/40 + 3/84 = 451/280
In mixed form: 1171/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/40+6/84 63/80+3/84 63/40+9/84 63/40+15/84 63/40+21/84