Add 42/30 and 42/72
1st number: 1 12/30, 2nd number: 42/72
42/30 + 42/72 is 119/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 30 × 12 = 360,
42/30 = 42 × 12/30 × 12 = 504/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
42/72 = 42 × 5/72 × 5 = 210/360 - Add the two like fractions:
504/360 + 210/360 = 504 + 210/360 = 714/360 - 714/360 simplified gives 119/60
- So, 42/30 + 42/72 = 119/60
In mixed form: 159/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/30+42/72 42/30+84/72 42/60+42/72 42/90+42/72