Add 21/40 and 4/16
21/40 + 4/16 is 31/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 40 × 2 = 80,
21/40 = 21 × 2/40 × 2 = 42/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
4/16 = 4 × 5/16 × 5 = 20/80 - Add the two like fractions:
42/80 + 20/80 = 42 + 20/80 = 62/80 - 62/80 simplified gives 31/40
- So, 21/40 + 4/16 = 31/40
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