Add 90/20 and 50/84
1st number: 4 10/20, 2nd number: 50/84
90/20 + 50/84 is 107/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
90/20 = 90 × 21/20 × 21 = 1890/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
50/84 = 50 × 5/84 × 5 = 250/420 - Add the two like fractions:
1890/420 + 250/420 = 1890 + 250/420 = 2140/420 - 2140/420 simplified gives 107/21
- So, 90/20 + 50/84 = 107/21
In mixed form: 52/21
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