Add 30/40 and 4/20
30/40 + 4/20 is 19/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 20 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 20 × 2 = 40,
4/20 = 4 × 2/20 × 2 = 8/40 - Add the two like fractions:
30/40 + 8/40 = 30 + 8/40 = 38/40 - 38/40 simplified gives 19/20
- So, 30/40 + 4/20 = 19/20
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