Add 20/28 and 81/16
1st number: 20/28, 2nd number: 5 1/16
20/28 + 81/16 is 647/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 16 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 28 × 4 = 112,
20/28 = 20 × 4/28 × 4 = 80/112 - Likewise, for the 2nd fraction, since 16 × 7 = 112,
81/16 = 81 × 7/16 × 7 = 567/112 - Add the two like fractions:
80/112 + 567/112 = 80 + 567/112 = 647/112 - So, 20/28 + 81/16 = 647/112
In mixed form: 587/112
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