Add 72/75 and 21/30
72/75 + 21/30 is 83/50.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 30 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 75 × 2 = 150,
72/75 = 72 × 2/75 × 2 = 144/150 - Likewise, for the 2nd fraction, since 30 × 5 = 150,
21/30 = 21 × 5/30 × 5 = 105/150 - Add the two like fractions:
144/150 + 105/150 = 144 + 105/150 = 249/150 - 249/150 simplified gives 83/50
- So, 72/75 + 21/30 = 83/50
In mixed form: 133/50
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