Add 21/5 and 3/30
1st number: 4 1/5, 2nd number: 3/30
21/5 + 3/30 is 43/10.
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,
3/30 = 3 × 1/30 × 1 = 3/30 - Add the two like fractions:
126/30 + 3/30 = 126 + 3/30 = 129/30 - 129/30 simplified gives 43/10
- So, 21/5 + 3/30 = 43/10
In mixed form: 43/10
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