Add 54/12 and 21/70, Solve 4 6/12 + 21/70 as a fraction

Add 54/12 and 21/70

1^st number: 4 6/12, 2^nd number: 21/70

54/12 + 21/70 is 24/5.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 70 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 12 × 35 = 420,
54/12 = 54 × 35/12 × 35 = 1890/420
Likewise, for the 2nd fraction, since 70 × 6 = 420,
21/70 = 21 × 6/70 × 6 = 126/420
Add the two like fractions:
1890/420 + 126/420 = 1890 + 126/420 = 2016/420
2016/420 simplified gives 24/5
So, 54/12 + 21/70 = 24/5
In mixed form: 44/5

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