Add 42/21 and 90/50
1st number: 2 0/21, 2nd number: 1 40/50
42/21 + 90/50 is 19/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 50 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 21 × 50 = 1050,
42/21 = 42 × 50/21 × 50 = 2100/1050 - Likewise, for the 2nd fraction, since 50 × 21 = 1050,
90/50 = 90 × 21/50 × 21 = 1890/1050 - Add the two like fractions:
2100/1050 + 1890/1050 = 2100 + 1890/1050 = 3990/1050 - 3990/1050 simplified gives 19/5
- So, 42/21 + 90/50 = 19/5
In mixed form: 34/5
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