Add 30/70 and 20/5
1st number: 30/70, 2nd number: 4 0/5
30/70 + 20/5 is 31/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 5 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
30/70 = 30 × 1/70 × 1 = 30/70 - Likewise, for the 2nd fraction, since 5 × 14 = 70,
20/5 = 20 × 14/5 × 14 = 280/70 - Add the two like fractions:
30/70 + 280/70 = 30 + 280/70 = 310/70 - 310/70 simplified gives 31/7
- So, 30/70 + 20/5 = 31/7
In mixed form: 43/7
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