Add 81/42 and 72/25, Solve 1 39/42 + 2 22/25 as a fraction

Add 81/42 and 72/25

1^st number: 1 39/42, 2^nd number: 2 22/25

81/42 + 72/25 is 1683/350.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 25 is 1050

Next, find the equivalent fraction of both fractional numbers with denominator 1050
For the 1st fraction, since 42 × 25 = 1050,
81/42 = 81 × 25/42 × 25 = 2025/1050
Likewise, for the 2nd fraction, since 25 × 42 = 1050,
72/25 = 72 × 42/25 × 42 = 3024/1050
Add the two like fractions:
2025/1050 + 3024/1050 = 2025 + 3024/1050 = 5049/1050
5049/1050 simplified gives 1683/350
So, 81/42 + 72/25 = 1683/350
In mixed form: 4283/350

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