Add 28/35 and 90/60, Solve 28/35 + 1 30/60 as a fraction

Add 28/35 and 90/60

1^st number: 28/35, 2^nd number: 1 30/60

28/35 + 90/60 is 23/10.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 60 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 35 × 12 = 420,
28/35 = 28 × 12/35 × 12 = 336/420
Likewise, for the 2nd fraction, since 60 × 7 = 420,
90/60 = 90 × 7/60 × 7 = 630/420
Add the two like fractions:
336/420 + 630/420 = 336 + 630/420 = 966/420
966/420 simplified gives 23/10
So, 28/35 + 90/60 = 23/10
In mixed form: 23/10

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