Add 42/80 and 90/9
1st number: 42/80, 2nd number: 10 0/9
42/80 + 90/9 is 421/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 9 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 9 × 80 = 720,
90/9 = 90 × 80/9 × 80 = 7200/720 - Add the two like fractions:
378/720 + 7200/720 = 378 + 7200/720 = 7578/720 - 7578/720 simplified gives 421/40
- So, 42/80 + 90/9 = 421/40
In mixed form: 1021/40
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