Add 21/14 and 20/16
1st number: 1 7/14, 2nd number: 1 4/16
21/14 + 20/16 is 11/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 16 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 14 × 8 = 112,
21/14 = 21 × 8/14 × 8 = 168/112 - Likewise, for the 2nd fraction, since 16 × 7 = 112,
20/16 = 20 × 7/16 × 7 = 140/112 - Add the two like fractions:
168/112 + 140/112 = 168 + 140/112 = 308/112 - 308/112 simplified gives 11/4
- So, 21/14 + 20/16 = 11/4
In mixed form: 23/4
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