Add 42/72 and 8/7
1st number: 42/72, 2nd number: 1 1/7
42/72 + 8/7 is 145/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 7 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
42/72 = 42 × 7/72 × 7 = 294/504 - Likewise, for the 2nd fraction, since 7 × 72 = 504,
8/7 = 8 × 72/7 × 72 = 576/504 - Add the two like fractions:
294/504 + 576/504 = 294 + 576/504 = 870/504 - 870/504 simplified gives 145/84
- So, 42/72 + 8/7 = 145/84
In mixed form: 161/84
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