Add 84/80 and 8/42
1st number: 1 4/80, 2nd number: 8/42
84/80 + 8/42 is 521/420.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 42 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 80 × 21 = 1680,
84/80 = 84 × 21/80 × 21 = 1764/1680 - Likewise, for the 2nd fraction, since 42 × 40 = 1680,
8/42 = 8 × 40/42 × 40 = 320/1680 - Add the two like fractions:
1764/1680 + 320/1680 = 1764 + 320/1680 = 2084/1680 - 2084/1680 simplified gives 521/420
- So, 84/80 + 8/42 = 521/420
In mixed form: 1101/420
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