Add 14/28 and 21/40
14/28 + 21/40 is 41/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 28 × 10 = 280,
14/28 = 14 × 10/28 × 10 = 140/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
21/40 = 21 × 7/40 × 7 = 147/280 - Add the two like fractions:
140/280 + 147/280 = 140 + 147/280 = 287/280 - 287/280 simplified gives 41/40
- So, 14/28 + 21/40 = 41/40
In mixed form: 11/40
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