Add 90/80 and 15/84
1st number: 1 10/80, 2nd number: 15/84
90/80 + 15/84 is 73/56.
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,
15/84 = 15 × 20/84 × 20 = 300/1680 - Add the two like fractions:
1890/1680 + 300/1680 = 1890 + 300/1680 = 2190/1680 - 2190/1680 simplified gives 73/56
- So, 90/80 + 15/84 = 73/56
In mixed form: 117/56
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