Add 42/4 and 81/45
1st number: 10 2/4, 2nd number: 1 36/45
42/4 + 81/45 is 123/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
42/4 = 42 × 45/4 × 45 = 1890/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
81/45 = 81 × 4/45 × 4 = 324/180 - Add the two like fractions:
1890/180 + 324/180 = 1890 + 324/180 = 2214/180 - 2214/180 simplified gives 123/10
- So, 42/4 + 81/45 = 123/10
In mixed form: 123/10
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