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