Add 30/40 and 3/10
30/40 + 3/10 is 21/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 10 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
30/40 = 30 × 1/40 × 1 = 30/40 - Likewise, for the 2nd fraction, since 10 × 4 = 40,
3/10 = 3 × 4/10 × 4 = 12/40 - Add the two like fractions:
30/40 + 12/40 = 30 + 12/40 = 42/40 - 42/40 simplified gives 21/20
- So, 30/40 + 3/10 = 21/20
In mixed form: 11/20
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