Add 50/21 and 90/35
1st number: 2 8/21, 2nd number: 2 20/35
50/21 + 90/35 is 104/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 35 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
50/21 = 50 × 5/21 × 5 = 250/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
90/35 = 90 × 3/35 × 3 = 270/105 - Add the two like fractions:
250/105 + 270/105 = 250 + 270/105 = 520/105 - 520/105 simplified gives 104/21
- So, 50/21 + 90/35 = 104/21
In mixed form: 420/21
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