Add 60/7 and 21/18, Solve 8 4/7 + 1 3/18 as a fraction

Add 60/7 and 21/18

1^st number: 8 4/7, 2^nd number: 1 3/18

60/7 + 21/18 is 409/42.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 18 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 7 × 18 = 126,
60/7 = 60 × 18/7 × 18 = 1080/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
21/18 = 21 × 7/18 × 7 = 147/126
Add the two like fractions:
1080/126 + 147/126 = 1080 + 147/126 = 1227/126
1227/126 simplified gives 409/42
So, 60/7 + 21/18 = 409/42
In mixed form: 931/42

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