Add 45/63 and 42/45
45/63 + 42/45 is 173/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
45/63 = 45 × 5/63 × 5 = 225/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
42/45 = 42 × 7/45 × 7 = 294/315 - Add the two like fractions:
225/315 + 294/315 = 225 + 294/315 = 519/315 - 519/315 simplified gives 173/105
- So, 45/63 + 42/45 = 173/105
In mixed form: 168/105
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