Add 12/30 and 21/72
12/30 + 21/72 is 83/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 30 × 12 = 360,
12/30 = 12 × 12/30 × 12 = 144/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
21/72 = 21 × 5/72 × 5 = 105/360 - Add the two like fractions:
144/360 + 105/360 = 144 + 105/360 = 249/360 - 249/360 simplified gives 83/120
- So, 12/30 + 21/72 = 83/120
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