Add 2/21 and 70/45, Solve 2/21 + 1 25/45 as a fraction

Add 2/21 and 70/45

1^st number: 2/21, 2^nd number: 1 25/45

2/21 + 70/45 is 104/63.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 45 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 21 × 15 = 315,
2/21 = 2 × 15/21 × 15 = 30/315
Likewise, for the 2nd fraction, since 45 × 7 = 315,
70/45 = 70 × 7/45 × 7 = 490/315
Add the two like fractions:
30/315 + 490/315 = 30 + 490/315 = 520/315
520/315 simplified gives 104/63
So, 2/21 + 70/45 = 104/63
In mixed form: 141/63

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