Add 70/12 and 21/45, Solve 5 10/12 + 21/45 as a fraction

Add 70/12 and 21/45

1^st number: 5 10/12, 2^nd number: 21/45

70/12 + 21/45 is 63/10.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 45 is 180

Next, find the equivalent fraction of both fractional numbers with denominator 180
For the 1st fraction, since 12 × 15 = 180,
70/12 = 70 × 15/12 × 15 = 1050/180
Likewise, for the 2nd fraction, since 45 × 4 = 180,
21/45 = 21 × 4/45 × 4 = 84/180
Add the two like fractions:
1050/180 + 84/180 = 1050 + 84/180 = 1134/180
1134/180 simplified gives 63/10
So, 70/12 + 21/45 = 63/10
In mixed form: 63/10

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