Add 28/7 and 21/16
1st number: 4 0/7, 2nd number: 1 5/16
28/7 + 21/16 is 85/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 16 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 7 × 16 = 112,
28/7 = 28 × 16/7 × 16 = 448/112 - Likewise, for the 2nd fraction, since 16 × 7 = 112,
21/16 = 21 × 7/16 × 7 = 147/112 - Add the two like fractions:
448/112 + 147/112 = 448 + 147/112 = 595/112 - 595/112 simplified gives 85/16
- So, 28/7 + 21/16 = 85/16
In mixed form: 55/16
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