Add 72/45 and 7/80
1st number: 1 27/45, 2nd number: 7/80
72/45 + 7/80 is 27/16.
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,
7/80 = 7 × 9/80 × 9 = 63/720 - Add the two like fractions:
1152/720 + 63/720 = 1152 + 63/720 = 1215/720 - 1215/720 simplified gives 27/16
- So, 72/45 + 7/80 = 27/16
In mixed form: 111/16
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