Add 1/2 and 21/40
1/2 + 21/40 is 41/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 2 × 20 = 40,
1/2 = 1 × 20/2 × 20 = 20/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
21/40 = 21 × 1/40 × 1 = 21/40 - Add the two like fractions:
20/40 + 21/40 = 20 + 21/40 = 41/40 - So, 1/2 + 21/40 = 41/40
In mixed form: 11/40
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