Add 21/27 and 75/70, Solve 21/27 + 1 5/70 as a fraction

Add 21/27 and 75/70

1^st number: 21/27, 2^nd number: 1 5/70

21/27 + 75/70 is 233/126.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 70 is 1890

Next, find the equivalent fraction of both fractional numbers with denominator 1890
For the 1st fraction, since 27 × 70 = 1890,
21/27 = 21 × 70/27 × 70 = 1470/1890
Likewise, for the 2nd fraction, since 70 × 27 = 1890,
75/70 = 75 × 27/70 × 27 = 2025/1890
Add the two like fractions:
1470/1890 + 2025/1890 = 1470 + 2025/1890 = 3495/1890
3495/1890 simplified gives 233/126
So, 21/27 + 75/70 = 233/126
In mixed form: 1107/126

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