Add 84/12 and 42/16
1st number: 7 0/12, 2nd number: 2 10/16
84/12 + 42/16 is 77/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 16 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 12 × 4 = 48,
84/12 = 84 × 4/12 × 4 = 336/48 - Likewise, for the 2nd fraction, since 16 × 3 = 48,
42/16 = 42 × 3/16 × 3 = 126/48 - Add the two like fractions:
336/48 + 126/48 = 336 + 126/48 = 462/48 - 462/48 simplified gives 77/8
- So, 84/12 + 42/16 = 77/8
In mixed form: 95/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/12+84/16 84/24+42/16 84/12+42/32 84/36+42/16 84/12+42/48 84/60+42/16 84/12+42/80