Add 42/72 and 24/30
42/72 + 24/30 is 83/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 30 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
42/72 = 42 × 5/72 × 5 = 210/360 - Likewise, for the 2nd fraction, since 30 × 12 = 360,
24/30 = 24 × 12/30 × 12 = 288/360 - Add the two like fractions:
210/360 + 288/360 = 210 + 288/360 = 498/360 - 498/360 simplified gives 83/60
- So, 42/72 + 24/30 = 83/60
In mixed form: 123/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/72+24/30 42/72+48/30 42/72+24/60 42/72+72/30 42/72+24/90