Add 28/14 and 21/20
1st number: 2 0/14, 2nd number: 1 1/20
28/14 + 21/20 is 61/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 14 × 10 = 140,
28/14 = 28 × 10/14 × 10 = 280/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
21/20 = 21 × 7/20 × 7 = 147/140 - Add the two like fractions:
280/140 + 147/140 = 280 + 147/140 = 427/140 - 427/140 simplified gives 61/20
- So, 28/14 + 21/20 = 61/20
In mixed form: 31/20
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