Add 60/45 and 45/70, Solve 1 15/45 + 45/70 as a fraction

Add 60/45 and 45/70

1^st number: 1 15/45, 2^nd number: 45/70

60/45 + 45/70 is 83/42.

Find the least common denominator or LCM of the two denominators:
LCM of 45 and 70 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 45 × 14 = 630,
60/45 = 60 × 14/45 × 14 = 840/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
45/70 = 45 × 9/70 × 9 = 405/630
Add the two like fractions:
840/630 + 405/630 = 840 + 405/630 = 1245/630
1245/630 simplified gives 83/42
So, 60/45 + 45/70 = 83/42
In mixed form: 141/42

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