Add 42/30 and 49/72
1st number: 1 12/30, 2nd number: 49/72
42/30 + 49/72 is 749/360.
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,
49/72 = 49 × 5/72 × 5 = 245/360 - Add the two like fractions:
504/360 + 245/360 = 504 + 245/360 = 749/360 - So, 42/30 + 49/72 = 749/360
In mixed form: 229/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/30+49/72 42/30+98/72 42/60+49/72 42/90+49/72