Add 81/80 and 20/75
1st number: 1 1/80, 2nd number: 20/75
81/80 + 20/75 is 307/240.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 75 is 1200
Next, find the equivalent fraction of both fractional numbers with denominator 1200 - For the 1st fraction, since 80 × 15 = 1200,
81/80 = 81 × 15/80 × 15 = 1215/1200 - Likewise, for the 2nd fraction, since 75 × 16 = 1200,
20/75 = 20 × 16/75 × 16 = 320/1200 - Add the two like fractions:
1215/1200 + 320/1200 = 1215 + 320/1200 = 1535/1200 - 1535/1200 simplified gives 307/240
- So, 81/80 + 20/75 = 307/240
In mixed form: 167/240
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