Add 42/63 and 18/72
42/63 + 18/72 is 11/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 63 × 8 = 504,
42/63 = 42 × 8/63 × 8 = 336/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
18/72 = 18 × 7/72 × 7 = 126/504 - Add the two like fractions:
336/504 + 126/504 = 336 + 126/504 = 462/504 - 462/504 simplified gives 11/12
- So, 42/63 + 18/72 = 11/12
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