Add 45/10 and 7/72
1st number: 4 5/10, 2nd number: 7/72
45/10 + 7/72 is 331/72.
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,
45/10 = 45 × 36/10 × 36 = 1620/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
7/72 = 7 × 5/72 × 5 = 35/360 - Add the two like fractions:
1620/360 + 35/360 = 1620 + 35/360 = 1655/360 - 1655/360 simplified gives 331/72
- So, 45/10 + 7/72 = 331/72
In mixed form: 443/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/10+7/72 45/10+14/72 45/20+7/72 45/10+21/72 45/30+7/72 45/10+35/72 45/50+7/72 45/10+49/72 45/70+7/72