Add 90/80 and 7/84
1st number: 1 10/80, 2nd number: 7/84
90/80 + 7/84 is 29/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 84 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 80 × 21 = 1680,
90/80 = 90 × 21/80 × 21 = 1890/1680 - Likewise, for the 2nd fraction, since 84 × 20 = 1680,
7/84 = 7 × 20/84 × 20 = 140/1680 - Add the two like fractions:
1890/1680 + 140/1680 = 1890 + 140/1680 = 2030/1680 - 2030/1680 simplified gives 29/24
- So, 90/80 + 7/84 = 29/24
In mixed form: 15/24
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