Add 45/56 and 42/63
45/56 + 42/63 is 247/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
45/56 = 45 × 9/56 × 9 = 405/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
42/63 = 42 × 8/63 × 8 = 336/504 - Add the two like fractions:
405/504 + 336/504 = 405 + 336/504 = 741/504 - 741/504 simplified gives 247/168
- So, 45/56 + 42/63 = 247/168
In mixed form: 179/168
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