Add 7/28 and 21/16
1st number: 7/28, 2nd number: 1 5/16
7/28 + 21/16 is 25/16.
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,
7/28 = 7 × 4/28 × 4 = 28/112 - Likewise, for the 2nd fraction, since 16 × 7 = 112,
21/16 = 21 × 7/16 × 7 = 147/112 - Add the two like fractions:
28/112 + 147/112 = 28 + 147/112 = 175/112 - 175/112 simplified gives 25/16
- So, 7/28 + 21/16 = 25/16
In mixed form: 19/16
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