Add 28/80 and 75/72
1st number: 28/80, 2nd number: 1 3/72
28/80 + 75/72 is 167/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 72 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
28/80 = 28 × 9/80 × 9 = 252/720 - Likewise, for the 2nd fraction, since 72 × 10 = 720,
75/72 = 75 × 10/72 × 10 = 750/720 - Add the two like fractions:
252/720 + 750/720 = 252 + 750/720 = 1002/720 - 1002/720 simplified gives 167/120
- So, 28/80 + 75/72 = 167/120
In mixed form: 147/120
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