Add 15/35 and 42/45
15/35 + 42/45 is 143/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 35 × 9 = 315,
15/35 = 15 × 9/35 × 9 = 135/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
42/45 = 42 × 7/45 × 7 = 294/315 - Add the two like fractions:
135/315 + 294/315 = 135 + 294/315 = 429/315 - 429/315 simplified gives 143/105
- So, 15/35 + 42/45 = 143/105
In mixed form: 138/105
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