Add 90/25 and 70/42
1st number: 3 15/25, 2nd number: 1 28/42
90/25 + 70/42 is 79/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 42 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 25 × 42 = 1050,
90/25 = 90 × 42/25 × 42 = 3780/1050 - Likewise, for the 2nd fraction, since 42 × 25 = 1050,
70/42 = 70 × 25/42 × 25 = 1750/1050 - Add the two like fractions:
3780/1050 + 1750/1050 = 3780 + 1750/1050 = 5530/1050 - 5530/1050 simplified gives 79/15
- So, 90/25 + 70/42 = 79/15
In mixed form: 54/15
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