Add 36/84 and 42/45
36/84 + 42/45 is 143/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 45 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 84 × 15 = 1260,
36/84 = 36 × 15/84 × 15 = 540/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
42/45 = 42 × 28/45 × 28 = 1176/1260 - Add the two like fractions:
540/1260 + 1176/1260 = 540 + 1176/1260 = 1716/1260 - 1716/1260 simplified gives 143/105
- So, 36/84 + 42/45 = 143/105
In mixed form: 138/105
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