Add 10/42 and 30/72
10/42 + 30/72 is 55/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 42 × 12 = 504,
10/42 = 10 × 12/42 × 12 = 120/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
30/72 = 30 × 7/72 × 7 = 210/504 - Add the two like fractions:
120/504 + 210/504 = 120 + 210/504 = 330/504 - 330/504 simplified gives 55/84
- So, 10/42 + 30/72 = 55/84
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