Add 40/25 and 2/21, Solve 1 15/25 + 2/21 as a fraction

Add 40/25 and 2/21

1^st number: 1 15/25, 2^nd number: 2/21

40/25 + 2/21 is 178/105.

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,
40/25 = 40 × 21/25 × 21 = 840/525
Likewise, for the 2nd fraction, since 21 × 25 = 525,
2/21 = 2 × 25/21 × 25 = 50/525
Add the two like fractions:
840/525 + 50/525 = 840 + 50/525 = 890/525
890/525 simplified gives 178/105
So, 40/25 + 2/21 = 178/105
In mixed form: 173/105

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