Add 90/80 and 42/45
1st number: 1 10/80, 2nd number: 42/45
90/80 + 42/45 is 247/120.
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,
90/80 = 90 × 9/80 × 9 = 810/720 - Likewise, for the 2nd fraction, since 45 × 16 = 720,
42/45 = 42 × 16/45 × 16 = 672/720 - Add the two like fractions:
810/720 + 672/720 = 810 + 672/720 = 1482/720 - 1482/720 simplified gives 247/120
- So, 90/80 + 42/45 = 247/120
In mixed form: 27/120
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