Add 20/5 and 90/84
1st number: 4 0/5, 2nd number: 1 6/84
20/5 + 90/84 is 71/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 5 × 84 = 420,
20/5 = 20 × 84/5 × 84 = 1680/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
90/84 = 90 × 5/84 × 5 = 450/420 - Add the two like fractions:
1680/420 + 450/420 = 1680 + 450/420 = 2130/420 - 2130/420 simplified gives 71/14
- So, 20/5 + 90/84 = 71/14
In mixed form: 51/14
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