Add 42/10 and 7/72
1st number: 4 2/10, 2nd number: 7/72
42/10 + 7/72 is 1547/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 10 × 36 = 360,
42/10 = 42 × 36/10 × 36 = 1512/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
7/72 = 7 × 5/72 × 5 = 35/360 - Add the two like fractions:
1512/360 + 35/360 = 1512 + 35/360 = 1547/360 - So, 42/10 + 7/72 = 1547/360
In mixed form: 4107/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10+7/72 42/10+14/72 42/20+7/72 42/10+21/72 42/30+7/72 42/10+35/72 42/50+7/72 42/10+49/72 42/70+7/72