Add 15/16 and 21/30
15/16 + 21/30 is 131/80.
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,
15/16 = 15 × 15/16 × 15 = 225/240 - Likewise, for the 2nd fraction, since 30 × 8 = 240,
21/30 = 21 × 8/30 × 8 = 168/240 - Add the two like fractions:
225/240 + 168/240 = 225 + 168/240 = 393/240 - 393/240 simplified gives 131/80
- So, 15/16 + 21/30 = 131/80
In mixed form: 151/80
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