Add 90/80 and 40/84
1st number: 1 10/80, 2nd number: 40/84
90/80 + 40/84 is 269/168.
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,
40/84 = 40 × 20/84 × 20 = 800/1680 - Add the two like fractions:
1890/1680 + 800/1680 = 1890 + 800/1680 = 2690/1680 - 2690/1680 simplified gives 269/168
- So, 90/80 + 40/84 = 269/168
In mixed form: 1101/168
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