Add 72/45 and 45/80
1st number: 1 27/45, 2nd number: 45/80
72/45 + 45/80 is 173/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
72/45 = 72 × 16/45 × 16 = 1152/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
45/80 = 45 × 9/80 × 9 = 405/720 - Add the two like fractions:
1152/720 + 405/720 = 1152 + 405/720 = 1557/720 - 1557/720 simplified gives 173/80
- So, 72/45 + 45/80 = 173/80
In mixed form: 213/80
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