Add 40/80 and 70/63, Solve 40/80 + 1 7/63 as a fraction

Add 40/80 and 70/63

1^st number: 40/80, 2^nd number: 1 7/63

40/80 + 70/63 is 29/18.

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 63 is 5040

Next, find the equivalent fraction of both fractional numbers with denominator 5040
For the 1st fraction, since 80 × 63 = 5040,
40/80 = 40 × 63/80 × 63 = 2520/5040
Likewise, for the 2nd fraction, since 63 × 80 = 5040,
70/63 = 70 × 80/63 × 80 = 5600/5040
Add the two like fractions:
2520/5040 + 5600/5040 = 2520 + 5600/5040 = 8120/5040
8120/5040 simplified gives 29/18
So, 40/80 + 70/63 = 29/18
In mixed form: 111/18

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