Add 42/25 and 12/21, Solve 1 17/25 + 12/21 as a fraction

Add 42/25 and 12/21

1^st number: 1 17/25, 2^nd number: 12/21

42/25 + 12/21 is 394/175.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 21 is 525

Next, find the equivalent fraction of both fractional numbers with denominator 525
For the 1st fraction, since 25 × 21 = 525,
42/25 = 42 × 21/25 × 21 = 882/525
Likewise, for the 2nd fraction, since 21 × 25 = 525,
12/21 = 12 × 25/21 × 25 = 300/525
Add the two like fractions:
882/525 + 300/525 = 882 + 300/525 = 1182/525
1182/525 simplified gives 394/175
So, 42/25 + 12/21 = 394/175
In mixed form: 244/175

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