Add 21/5 and 20/30
1st number: 4 1/5, 2nd number: 20/30
21/5 + 20/30 is 73/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 5 × 6 = 30,
21/5 = 21 × 6/5 × 6 = 126/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
20/30 = 20 × 1/30 × 1 = 20/30 - Add the two like fractions:
126/30 + 20/30 = 126 + 20/30 = 146/30 - 146/30 simplified gives 73/15
- So, 21/5 + 20/30 = 73/15
In mixed form: 413/15
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