Add 8/90 and 70/42
1st number: 8/90, 2nd number: 1 28/42
8/90 + 70/42 is 79/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 42 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
8/90 = 8 × 7/90 × 7 = 56/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
70/42 = 70 × 15/42 × 15 = 1050/630 - Add the two like fractions:
56/630 + 1050/630 = 56 + 1050/630 = 1106/630 - 1106/630 simplified gives 79/45
- So, 8/90 + 70/42 = 79/45
In mixed form: 134/45
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