Add 70/42 and 4/45
1st number: 1 28/42, 2nd number: 4/45
70/42 + 4/45 is 79/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 42 × 15 = 630,
70/42 = 70 × 15/42 × 15 = 1050/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
4/45 = 4 × 14/45 × 14 = 56/630 - Add the two like fractions:
1050/630 + 56/630 = 1050 + 56/630 = 1106/630 - 1106/630 simplified gives 79/45
- So, 70/42 + 4/45 = 79/45
In mixed form: 134/45
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