Add 42/80 and 27/45
42/80 + 27/45 is 9/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 45 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
42/80 = 42 × 9/80 × 9 = 378/720 - Likewise, for the 2nd fraction, since 45 × 16 = 720,
27/45 = 27 × 16/45 × 16 = 432/720 - Add the two like fractions:
378/720 + 432/720 = 378 + 432/720 = 810/720 - 810/720 simplified gives 9/8
- So, 42/80 + 27/45 = 9/8
In mixed form: 11/8
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