Add 42/48 and 90/70
1st number: 42/48, 2nd number: 1 20/70
42/48 + 90/70 is 121/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 70 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 48 × 35 = 1680,
42/48 = 42 × 35/48 × 35 = 1470/1680 - Likewise, for the 2nd fraction, since 70 × 24 = 1680,
90/70 = 90 × 24/70 × 24 = 2160/1680 - Add the two like fractions:
1470/1680 + 2160/1680 = 1470 + 2160/1680 = 3630/1680 - 3630/1680 simplified gives 121/56
- So, 42/48 + 90/70 = 121/56
In mixed form: 29/56
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