Add 42/45 and 72/63
1st number: 42/45, 2nd number: 1 9/63
42/45 + 72/63 is 218/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 63 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 63 × 5 = 315,
72/63 = 72 × 5/63 × 5 = 360/315 - Add the two like fractions:
294/315 + 360/315 = 294 + 360/315 = 654/315 - 654/315 simplified gives 218/105
- So, 42/45 + 72/63 = 218/105
In mixed form: 28/105
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