Add 63/42 and 70/72
1st number: 1 21/42, 2nd number: 70/72
63/42 + 70/72 is 89/36.
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,
63/42 = 63 × 12/42 × 12 = 756/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
70/72 = 70 × 7/72 × 7 = 490/504 - Add the two like fractions:
756/504 + 490/504 = 756 + 490/504 = 1246/504 - 1246/504 simplified gives 89/36
- So, 63/42 + 70/72 = 89/36
In mixed form: 217/36
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