Add 45/20 and 72/9
1st number: 2 5/20, 2nd number: 8 0/9
45/20 + 72/9 is 41/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 9 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
45/20 = 45 × 9/20 × 9 = 405/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
72/9 = 72 × 20/9 × 20 = 1440/180 - Add the two like fractions:
405/180 + 1440/180 = 405 + 1440/180 = 1845/180 - 1845/180 simplified gives 41/4
- So, 45/20 + 72/9 = 41/4
In mixed form: 101/4
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