Add 48/12 and 40/42
1st number: 4 0/12, 2nd number: 40/42
48/12 + 40/42 is 104/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
48/12 = 48 × 7/12 × 7 = 336/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
40/42 = 40 × 2/42 × 2 = 80/84 - Add the two like fractions:
336/84 + 80/84 = 336 + 80/84 = 416/84 - 416/84 simplified gives 104/21
- So, 48/12 + 40/42 = 104/21
In mixed form: 420/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/12+40/42 48/12+80/42 48/24+40/42 48/12+40/84 48/36+40/42 48/60+40/42 48/84+40/42