Add 21/16 and 90/28
1st number: 1 5/16, 2nd number: 3 6/28
21/16 + 90/28 is 507/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 28 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 16 × 7 = 112,
21/16 = 21 × 7/16 × 7 = 147/112 - Likewise, for the 2nd fraction, since 28 × 4 = 112,
90/28 = 90 × 4/28 × 4 = 360/112 - Add the two like fractions:
147/112 + 360/112 = 147 + 360/112 = 507/112 - So, 21/16 + 90/28 = 507/112
In mixed form: 459/112
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