Add 28/30 and 21/36
28/30 + 21/36 is 91/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 30 × 6 = 180,
28/30 = 28 × 6/30 × 6 = 168/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
21/36 = 21 × 5/36 × 5 = 105/180 - Add the two like fractions:
168/180 + 105/180 = 168 + 105/180 = 273/180 - 273/180 simplified gives 91/60
- So, 28/30 + 21/36 = 91/60
In mixed form: 131/60
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