Add 21/16 and 21/30
1st number: 1 5/16, 2nd number: 21/30
21/16 + 21/30 is 161/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 30 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 16 × 15 = 240,
21/16 = 21 × 15/16 × 15 = 315/240 - Likewise, for the 2nd fraction, since 30 × 8 = 240,
21/30 = 21 × 8/30 × 8 = 168/240 - Add the two like fractions:
315/240 + 168/240 = 315 + 168/240 = 483/240 - 483/240 simplified gives 161/80
- So, 21/16 + 21/30 = 161/80
In mixed form: 21/80
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