Add 30/21 and 6/40, Solve 1 9/21 + 6/40 as a fraction

Add 30/21 and 6/40

1^st number: 1 9/21, 2^nd number: 6/40

30/21 + 6/40 is 221/140.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 40 is 840

Next, find the equivalent fraction of both fractional numbers with denominator 840
For the 1st fraction, since 21 × 40 = 840,
30/21 = 30 × 40/21 × 40 = 1200/840
Likewise, for the 2nd fraction, since 40 × 21 = 840,
6/40 = 6 × 21/40 × 21 = 126/840
Add the two like fractions:
1200/840 + 126/840 = 1200 + 126/840 = 1326/840
1326/840 simplified gives 221/140
So, 30/21 + 6/40 = 221/140
In mixed form: 181/140

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