Add 49/12 and 42/40
1st number: 4 1/12, 2nd number: 1 2/40
49/12 + 42/40 is 77/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 12 × 10 = 120,
49/12 = 49 × 10/12 × 10 = 490/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
42/40 = 42 × 3/40 × 3 = 126/120 - Add the two like fractions:
490/120 + 126/120 = 490 + 126/120 = 616/120 - 616/120 simplified gives 77/15
- So, 49/12 + 42/40 = 77/15
In mixed form: 52/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/12+42/40 49/12+84/40 49/24+42/40 49/12+42/80 49/36+42/40 49/60+42/40 49/84+42/40