Add 63/16 and 72/40
1st number: 3 15/16, 2nd number: 1 32/40
63/16 + 72/40 is 459/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 40 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
63/16 = 63 × 5/16 × 5 = 315/80 - Likewise, for the 2nd fraction, since 40 × 2 = 80,
72/40 = 72 × 2/40 × 2 = 144/80 - Add the two like fractions:
315/80 + 144/80 = 315 + 144/80 = 459/80 - So, 63/16 + 72/40 = 459/80
In mixed form: 559/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/32+72/40 63/16+72/80 63/48+72/40 63/80+72/40