Add 18/42 and 70/72
18/42 + 70/72 is 353/252.
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,
18/42 = 18 × 12/42 × 12 = 216/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
70/72 = 70 × 7/72 × 7 = 490/504 - Add the two like fractions:
216/504 + 490/504 = 216 + 490/504 = 706/504 - 706/504 simplified gives 353/252
- So, 18/42 + 70/72 = 353/252
In mixed form: 1101/252
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